US 8738925

I'll run several targeted searches for this exact patent number and any 2026 CAFC activity.

Bottom line first

I ran targeted searches for the exact string 8738925 / US 8,738,925 (and the full-number forms 8,738,925 and 8738925 B1). I found extensive bibliographic and family data and the patent's own text, but I found no 2026 Federal Circuit (CAFC) docket entry, opinion, order, or oral-argument listing that references US 8,738,925. The CAFC 2026 pages I retrieved list other patents and parties only. I cannot prove a negative from web search alone, so treat "no 2026 CAFC activity found" as not located, not certainly nonexistent. I also could not retrieve the verbatim claim set in the fetched full text (it truncated before the claims), so I flag the claim overview below as inferred rather than quoted.

1. Bibliographic data (as listed by the sources retrieved)

Family members named in the retrieved documents (later-filed U.S. continuations/continuations-in-part claiming priority to this application, plus foreign counterparts): US 8,745,247 B1; US 8,892,749 B2; US 9,286,792 B2; US 9,655,053 B2; CN 103908227 B; CN 105559753 B; and publications US 2014/232558 A1, US 2015/042490 A1, US 2016/227484 A1. Note these are later filings claiming priority to 13/769,241 — i.e., the flow of priority in the record runs from this patent, not to it.

Security-interest records (assignments, not ownership transfers): Morgan Stanley Senior Funding (collateral agent, 2014-08-13) and Silicon Valley Bank (administrative agent, 2014-08-15), both later released/terminated in December 2015.

Sources used: Google Patents (https://patents.google.com/patent/US8738925B1/en), FreePatentsOnline (https://www.freepatentsonline.com/8738925.html), uspto.report (https://uspto.report/patent/grant/8,738,925), and a Korean-family listing at Google Patents (KR20120094906A, citing "US8738925B1 (en) | 2013-01-07 | 2014-05-27 | Fitbit, Inc. | Wireless portable biometric device syncing").

2. Abstract (verbatim)

"A notification signal, intended to be received by a wireless communication device, is intermittently broadcast by a portable biometric device that generates biometric data corresponding to activity of an individual bearing the portable biometric device. The notification signal conveys information that identifies the portable biometric device and that indicates whether or not the portable biometric device seeks establishment of a wireless communication link to enable transmission of the biometric data to the wireless communication device."

3. Plain-language overview of the independent claims

⚠️ Caveat on authority: the full text I retrieved contained the abstract and detailed description but was truncated mid-sentence before the "claims" section, and none of the other hits returned claim text. I therefore cannot quote or number the claims. What follows is my characterization of the claimed subject matter based on the abstract (which is essentially claim-shaped), the specification's "Syncing Criteria" and "Sensor Device Broadcasts" sections, and the patent's stated purpose. Treat claim numbering and exact wording as unverified.

The patent appears to claim, in independent form:

1. A method (the core broadcast-and-decide method): a portable biometric device (wearable, sensor-based, generating biometric data from the wearer's activity) intermittently broadcasts a notification signal — periodically or aperiodically — that is intended to be received by a nearby wireless communication device. The signal carries two pieces of information: (a) an identity of the portable biometric device (device ID, device type, and/or owner/user ID), and (b) a flag/indicator of whether the portable device is seeking establishment of a wireless communication link so the biometric data can be transferred. In plain terms: the tracker repeatedly "announces itself" over a low-power radio (the spec's worked example is Bluetooth Smart / BTLE, broadcasting one of two UUIDs), and each announcement says both who I am and do I want to sync right now.

2. A portable biometric device / apparatus claim covering the same functionality from the device side: biometric circuitry (e.g., a motion sensor and processing circuitry deriving biometric data such as step count, floors climbed, energy expenditure) plus wireless communication circuitry programmed to intermittently broadcast that identification-plus-sync-intent notification signal, and to then engage in a data sync when a link is established.

3. A system or computer-readable-medium claim covering the device-plus-communication-device combination (and/or the relay of data onward to a server/"third computing device" via the communication device acting as a network tunnel).

Key functional concepts that sit under these claims, per the description:

• The "seeks a link" indication is determined by comparing an update metric against an update threshold (e.g., "new biometric data acquired AND >15 minutes since last sync"), as illustrated in FIG. 22; the indicator is advisory — the communication device may still decline, or may itself initiate a link.
• The broadcast cadence may be fixed (FIG. 17), variable (FIG. 18, e.g., start at 2 s, back off by 1 min to a 30-min ceiling when no response), or mixed/threshold-triggered (FIGS. 19–21).
• The information may be encoded by substituting the broadcast UUID/identifier with one whose presence itself signals "new data to sync," so the receiving phone only initiates a connection at the right moments (power conservation).
• Synchronization is criteria-driven — the spec enumerates device-type, unique-device, new-data, goal-based, physiological-state, user-interaction, activity-based, timestamp, location, and connection-type criteria, combinable into "meta-criteria" with priorities.
• Security/relay variants are described (encrypted payload so the phone is an untrusted tunnel; derived keys and tokens for direct client reads; multi-channel high-speed vs. server-bound channels).

Given the classification tags (H04W52/02 and H04W52/0254 — power saving via monitoring local events such as user motion, and H04Q2209/82/823 — sensing device takes the initiative in sending data / sending when a threshold is exceeded), the claims are properly read as power-conserving, event- and threshold-conditioned wireless data synchronization, not merely generic telemetry.

4. CAFC / litigation check for 2026

• No 2026 CAFC case found naming US 8,738,925 as the patent-in-suit. Searches returned the CAFC's 2026 daily listings (e.g., April 13, 2026 and June 8, 2026 oral-argument pages, the September 21, 2026 opinions page, and the September 11, 2026 AlterWAN, Inc. v. Amazon.com, Inc., No. 2025-1285 nonprecedential opinion concerning U.S. 8,595,478) — none of these involve 8,738,925.
• For historical context (not a docket confirmation for this patent): the Fitbit/Jawbone/BodyMedia disputes of 2015–2016 involved Fitbit patents 8,909,543; 9,031,812; 9,042,971; 9,026,053; 9,084,923; 9,106,307; 8,920,332; 8,868,377; 9,089,760 and Jawbone patents 8,446,275; 8,073,707; 8,398,546, per Fitbit's Form 10-Q disclosures (e.g., getfilings.com 10-Q excerpts, and Aliphcom v. Fitbit, Inc., 154 F. Supp. 3d 933 (N.D. Cal. 2015)). 8,738,925 does not appear in those asserted-patent lists. I did not verify this against the full docket for every related case.
• I also found a third-party patent-office citation of US 8,738,925 B1 as prior art (EP 3 460 774 A4 search report, cited as X against claims 1, 4–6 of that EP application), which indicates continued use of this patent as prior art — but that is a prosecution citation, not litigation.

Uncertainty statement: I have not confirmed any 2026 CAFC docket for this patent, and I have not confirmed the exact independent-claim wording or numbering. If you need verified claim text, the authoritative sources are the USPTO PatentCenter record for application 13/769,241 and the printed patent's claims column; I was unable to retrieve that claim text with the tool calls available here.

I'll research litigation involving US Patent 8,738,925 across patent litigation databases.

Let me search more targeted litigation databases.

Let me search litigation-specific databases more precisely.

Summary Answer

I was unable to identify any known litigation asserting U.S. Patent No. 8,738,925. My searches did not surface a single complaint, docket entry, or case list entry in which the '925 patent appears as an asserted patent-in-suit. Based on the available information, I cannot report any case with plaintiff/defendant/jurisdiction/case-number data for this specific patent, and I will not fabricate one.

What I searched

Using web search, I queried combinations including the patent number ("8738925," "8,738,925," "U.S. Patent No. 8,738,925") together with litigation-oriented terms and names of the assignee (Fitbit), and I targeted litigation aggregators such as the Unified Patents portal (portal.unifiedpatents.com/litigation/caselist), RPX Insight, Docket Alarm, CourtListener/RECAP, and Google Patents.

Caveat on completeness: I was not able to directly browse the Unified Patents litigation case list, PACER, or the CAFC docket for this patent; my tooling returned search-engine results only. My searches surfaced the patent in prosecution/prior-art and family contexts (e.g., cited as an "X" reference in a European search report against EP3460774, and as a family member listed in patent-family annexes for CN103908227/CN105559753), but not in any infringement complaint or case caption. This is a negative finding based on the searches performed, not a certification that no such case exists.

Related Fitbit patent litigation that does NOT involve the '925 patent

To be clear about the distinction, my searches did surface several Fitbit-related patent cases — but in every one, the patents asserted are different from the '925 patent:

None of these cases asserts the '925 patent, and none of the listed patent numbers should be confused with 8,738,925.

Why this is plausible (but not conclusive)

US 8,738,925 is a Fitbit-assigned patent (inventors James Park, Heiko Panther, Barry Burton, Eric Nathan Friedman) covering a portable biometric device that broadcasts a notification signal indicating whether it seeks a wireless link to sync biometric data. Its family relatives — e.g., U.S. Pat. Nos. 8,745,247 and 8,892,749, and CN103908227/CN105559753 — and its continuation/divisional siblings are the more commonly asserted Fitbit portfolio members. The '925 patent itself did not appear as an asserted patent in the cases my searches returned.

Recommendation for verification before relying on this

Because patent litigation tracking requires authoritative docket data, I would confirm the negative finding against primary sources before treating it as final:

1. Unified Patents litigation portal — search the patent number directly at https://portal.unifiedpatents.com/litigation.
2. RPX Insight / Docket Alarm / Lex Machina — "Patent" field search for 8,738,925 to pull any district-court or ITC docket.
3. PACER — run a party/patent search; check Fitbit, Inc. / Fitbit LLC as assignee.
4. USPTO Patent Center & Assignment records — the '925 patent's public file history/assignment record may list litigation notices or confirm family members more likely to be asserted.

If you can point me to a specific court or defendant, I can re-run a narrower search on that docket.

Bottom line: On the information available, I found no known litigation involving U.S. Patent No. 8,738,925, and I decline to invent plaintiff/defendant/case details for it. The Fitbit patent cases that do exist (Cellspin, Jawbone, Philips) concern different patents.

I'll start by verifying the structured data against public sources, and check for any AIA trials (or appeals) the ODP may not have indexed.

Let me dig further — including for the patent's family members and any litigation-driven PTAB challenges.

No PTAB hits yet. Let me check PTAB E2E / patent-specific trackers and the related Fitbit-family litigation-driven filings.

Proceedings overview

Zero (0) AIA trial proceedings are on file against US 8,738,925 — no IPR, no PGR, no CBM (the CBM program expired 2020-09-16, and this patent would not have qualified in any event given its biometric-hardware claims). The canonical USPTO Open Data Portal list is empty, and I could not surface any PTAB petition or institution decision naming this patent in web sources either. There is therefore no claims-invalidated, claims-sustained, settled or institution-denied bucket to report; the defensive posture is the inverse of a hardened patent: the patent is untested but also un-hardened — no petitioner has ever tried to kill it, which means no claim of '925 has ever been held unpatentable, and equally, no claim has any PTAB pedigree you can rely on to attack the surviving scope.

Patent record confirmed for orientation (Google Patents, USPTO ODP):

• Patent: US 8,738,925 B1, "Wireless portable biometric device syncing"; Application 13/769,241, filed 2013-02-15; provisional 61/749,911 priority 2013-01-07; granted 2014-05-27.
• Inventors: James Park, Heiko Gernot Albert Panther, Barry Christopher Burton, Eric Nathan Friedman. Assignee: Fitbit LLC (originally Fitbit, Inc.).
• Legal status: Active; anticipated expiration 2033-02-15. Roughly 6.4 years of term remain as of 2026-09-27 — long enough that a validity challenge is still worth funding.

Because the structured block is the authoritative source and it reports no proceedings, I am not creating a per-proceeding section for a proceeding that does not exist. What follows is the verifiable related-PTAB context (proceedings involving other patents, by or against Fitbit) and what it does and does not tell you.

Related PTAB activity that involves Fitbit but NOT US 8,738,925

These are not proceedings on '925. I am listing them explicitly labelled so that no reader or downstream system mistakes them for proceedings on this patent.

The only appearance of '925 in any Office-facing document I could surface is as prior art against somebody else — e.g., the EPO search report in EP3460774A4 cites "US 8738925 B1 (Park James et al.)" as X-category art against claims 1 and 4-6, with figures 5, 11-13 and cols. 3, 7, 10, 13, 14, 17 relied on. There are also Fitbit-side ex parte appeal decisions in the same technical space (e.g., Appeal 2018-000661, Application 14/250,256, Ex parte Hong et al., affirmed under § 101 and § 103 over Weast/Meger/Najarian/Stephan — that is a different application, not '925, and I am citing it only as § 101/§ 103 climate evidence for wearable biometric claims).

Strategic summary

Claim status against the patent itself is unknowable from the public record because nothing has been adjudicated. There are no canceled claims, no sustained claims, and no claims that survived a challenge — every claim of '925 is, in PTAB terms, UNTESTED. Contrast that with the way the same portfolio's subject matter has fared when it has been litigated: in Cellspin Soft, Inc. v. Fitbit LLC, Nos. 22-2025 et al. (Fed. Cir. Nov. 1, 2024), the Federal Circuit affirmed summary judgment of non-infringement in favor of Fitbit, Fossil, and Garmin on the '794, '752, and '847 patents after Cellspin's infringement contentions were held to have forfeited its "OAuth as user identifier" theory. Those are Cellspin's patents, not Fitbit's, but the case shows the wearable/sync space is being litigated around user-identifier and data-upload limitations closely adjacent to the subject matter of '925. Fitbit's own § 101 exposure in this space is real (see the affirmed examiner rejection above and the Alice rulings in the Fitbit/Jawbone litigation), which means a § 101 challenge to '925 is not frivolous — but PTAB cannot hear it, and post-Alice § 101 must be litigated in district court.

Estoppel landscape: there is none, in either direction. With no instituted IPR, § 315(e)(2) estoppel attaches to nobody — neither Fitbit nor any third party. A defendant today has the entire prior-art universe available, including: (i) patents and printed publications that were before the examiner, (ii) the references cited in the EPO search report for the corresponding family, and (iii) § 101 and § 112 grounds, which IPR cannot reach and which a PGR cannot reach either because this patent's 2013 priority date falls outside the PGR-eligible window (PGR only applies to patents with a claim priority on or after 2013-03-16, and '925's effective filing is 2013-01-07/2013-02-15). Practically, that means: your invalidating-art IPR window is fully open, and your § 101/§ 112 attacks must go to the district court or an ex parte reexamination, not to the Board.

Pattern signals. Fitbit is a sophisticated, repeat PTAB litigant — on the petitioner side, against BodyMedia/Jawbone and Valencell. It has never needed to defend '925 at the Board because nobody has attacked it. There is no defensive aggregator (Unified Patents, RPX, etc.) in this chain; the Unified Patents portal entry for US-8738925-B1 is a prior-art/patent-record citation, not an IPR target, and I would treat any suggestion that Unified filed against it as unverified. One structural warning that matters more than the absence of IPRs: US 8,745,247 B1 is a continuation of the same 13/769,241 application (the '247 specification states it is "a continuation of U.S. patent application Ser. No. 13/769,241"). If a demand letter asserts '925, assume the same family has sibling continuations and foreign counterparts (CN 103908227 B, CN 105559753 B, US 2014/0232558, US 2015/042490, US 2016/0227484) that may carry overlapping claims. Killing '925 alone may not kill the assertion.

Recommended next steps

If you are a defendant being asserted against US 8,738,925 today:

1. There is no FWD to hand the plaintiff. Do not let opposing counsel or a demand-letter template imply otherwise. The absence of any PTAB paper is verifiable at USPTO PTAB E2E (https://ptacts.uspto.gov/ptacts/) and in the patent's Google Patents record (https://patents.google.com/patent/[US8738925B1](/patent/US8738925B1)/en), both of which show zero inter partes review, post-grant review, or covered business method entries.
2. File an IPR if you have patents/printed publications. With no institution history and no § 315(b)-triggering prior petition, you can file without General Plastic follow-on petition risk and without Fintiv-type overlap with an earlier Board record. Note the current Director-level discretionary-denial regime (institution authority consolidated in the Director; institution rates reported to have dropped to roughly 30-40% as of mid-2026), so plead § 314(a) and § 325(d) defensively up front and consider a Sotera-style stipulation to blunt parallel-litigation denial.
3. Package the § 101 and § 112 grounds for court, not the Board. The claims are a broadcast-notification-signal/data-sync construct; the closest judicial treatment of analogous Fitbit-space claims came out badly for patentees (see the Fitbit/Jawbone Alice rulings and Ex parte Hong, Appeal 2018-000661, https://e-foia.uspto.gov/Foia/RetrievePdf?system=BPAI&flNm=fd2018000661-10-04-2018-1).
4. Map the family before you spend. Confirm whether the asserted claims sit in '925 or in a continuation such as US 8,745,247 B1 or a later filing claiming benefit of 13/769,241 / 61/749,911. Challenge the family, not the patent number.
5. Timeline note for any IPR you file: statutory FWD deadline is 1 year from institution (§ 316(a)(11)), with institution decided within ~6 months of filing. There are no pending '925 milestones to calendar because there is no pending '925 proceeding.

Caveat on completeness: I verified the absence of proceedings against the USPTO ODP list you provided and against publicly indexed PTAB materials. PTAB filings can take days to appear in third-party indexes, and a very recently filed petition (within roughly the past 1-2 weeks) may not yet be indexed. If you need dispositive confirmation, pull the patent's "Post Grant/PTAB" tab directly in USPTO Patent Center and query PTAB E2E by patent number — that is the only source that will show a petition filed but not yet publicly processed. If nothing appears there, the correct statement is the one above: no PTAB activity on file, and no AIA trial proceeding has ever been instituted against US 8,738,925.

I'll research this patent's assignment record before drafting. Let me pull from multiple sources.

Let me dig for the patent-specific assignment reels and any assertion history.

Ownership reconstruction — US 8,738,925 B1 ("Wireless portable biometric device syncing")

Sourcing note (read first). I could not execute a live query against USPTO Assignment Center (assignmentcenter.uspto.gov) — it is a JavaScript application that my retrieval tooling cannot render, and my search passes returned the trademark assignment records rather than the patent-series records for this number. Accordingly, I have no reel/frame numbers and no patent-record correspondent attorneys for US 8,738,925, and I am not going to invent them. What follows is grounded in (a) the Google Patents legal-events feed supplied as the authoritative source for this patent, which is populated from the same Assignment Center database, and (b) corroborating public records (Delaware Secretary of State, federal court filings, IPR mandatory notices). Every field I could not verify is marked not retrieved.

Inventors

Unusual-pattern check. The inventors' employer is established by the 2013-03-05 recording, in which exactly these four individuals conveyed their interest to FITBIT, INC. — the standard employee/founder invention-assignment, filed ~3 weeks after the 2013-02-15 non-provisional and ~2 months after the 2013-01-07 provisional. There is no inventor-attrition signal: no evidence that the inventors departed the assignee within 12 months, no post-filing inventor-side conveyance, and the two founders were still running the company at the time of the 2021 acquisition. The "prior art date 2013-01-07" and "filing date 2013-02-15" interplay is normal provisional-to-utility practice, not a distressed refiling.

Original assignee

Fitbit, Inc. — Delaware corporation, incorporated 2007-03-26, principal place of business 405 Howard Street / 199 Fremont Street, San Francisco, CA (per complaint in Fitbit, Inc. v. Koninklijke Philips N.V., N.D. Cal.) and per the Delaware Certificate of Conversion.

• Products embodying the claims: Yes. The claims are directed to a portable biometric device that intermittently broadcasts a notification signal identifying the device and indicating whether it seeks a wireless link (Bluetooth Smart / BLE UUID-based sync). Fitbit shipped the Zip, One, Flex, Charge, Charge HR, Surge, Blaze and successor trackers that pair and sync to a phone app over BLE — squarely the claimed architecture.
• Primary line of business: Consumer wearables — activity trackers and smartwatches — plus the connected health/digital-health platform.
• Status: Operating. IPO'd on the NYSE (ticker FIT) in June 2015; acquired by Google (Google LLC / Alphabet Inc.) for ~$2.1B, deal completed 2021-01-14. On 2021-07-31 at 3:01 a.m. EDT, Fitbit, Inc. converted into a Delaware LLC and changed its name to Fitbit LLC (Delaware Certificate of Conversion filed 2021-07-28; DRS conversion form filed with Mississippi SoS showing the same). Fitbit LLC is a subsidiary of Google LLC → XXVI Holdings Inc. → Alphabet Inc. (per Fitbit's 37 C.F.R. § 42.8 notices in IPR2021-00494, dated 2021-02-24). This is an entity conversion and parent acquisition, not a portfolio sale.

Assignment timeline

All entries below are from the Google Patents legal-events feed for US 8,738,925, which mirrors Assignment Center data. Execution dates and reel/frame numbers were not retrievable with my tooling and are therefore omitted rather than guessed.

1. Executed: not retrieved / recorded 2013-03-05 — Reel not retrieved

   • Conveyance: Assignment of Assignors' Interest
   • Assignor: Barry Christopher Burton; Eric Nathan Friedman; James Park; Heiko Gernot Albert Panther (individually)
   • Assignee: FITBIT, INC.
   • Correspondent: not retrieved
   • Context: Initial founder/employee invention assignment contemporaneous with filing — ordinary-course, not an acquisition.

2. Executed: not retrieved / recorded 2014-08-13 — Reel not retrieved

   • Conveyance: Security Interest
   • Assignor: FITBIT, INC.
   • Assignee: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
   • Correspondent: not retrieved
   • Context: Securitization — the patent pledged as collateral under a pre-IPO secured credit facility.

3. Executed: not retrieved / recorded 2014-08-15 — Reel not retrieved

   • Conveyance: Security Interest
   • Assignor: FITBIT, INC.
   • Assignee: SILICON VALLEY BANK, AS ADMINISTRATIVE AGENT
   • Correspondent: not retrieved
   • Context: Securitization — the companion administrative-agent side of the same or a parallel 2014 facility. Two days apart, one collateral agent + one administrative agent is the signature of a single syndicated facility, not two independent transfers.

4. Executed: not retrieved / recorded 2015-12-11 — Reel not retrieved

   • Conveyance: Release of Security Interest in Patents
   • Assignor: MORGAN STANLEY SENIOR FUNDING, INC.
   • Assignee: FitStar, Inc.; FITBIT, INC.
   • Correspondent: not retrieved
   • Context: Release — closing out the collateral pledge, ~4 months after the June 2015 IPO (consistent with repayment/refinancing; inference, not a documented fact). The assignee field as indexed names both FitStar, Inc. and FITBIT, INC., which indicates a bulk release cover sheet covering the Fitbit and FitStar dockets (Fitbit acquired FitStar in 2015).

5. Executed: not retrieved / recorded 2015-12-15 — Reel not retrieved

   • Conveyance: Termination and Release of Security Interest in Patents
   • Assignor: SILICON VALLEY BANK, AS ADMINISTRATIVE AGENT
   • Assignee: FitStar, Inc.; FITBIT, INC.
   • Correspondent: not retrieved
   • Context: Release — the SVB side of the same unwinding, four days after the Morgan Stanley release.

6. Corporate action, 2021-07-31 (effective) — patent-series reel not retrieved. Fitbit, Inc. → Fitbit LLC by Delaware Certificate of Conversion. A trademark-series recording of the same conversion exists on reel 7434/0667, executed 2021-07-31 and recorded 2021-09-28, assignor FITBIT, INC., assignee FITBIT LLC, Limited Liability Company, Delaware, correspondent KAREN A. WEBB, FENWICK & WEST LLP, 801 California Street, Silicon Valley Center, Mountain View, CA 94041. ⚠️ This is a trademark reel surfaced in TTAB opposition 91273838, not the patent reel — I am flagging it as corroboration of the conversion and of Fitbit's outside IP counsel, not as the patent record. A further trademark recording, reel 7439/0256, executed 2021-09-21 and recorded 2021-10-01, runs to an assignee at 1600 Amphitheatre Parkway, Mountain View, CA 94043 (Google's headquarters address); I could not confirm the assignee name from the excerpt, so I do not assert it.

The chain never leaves Fitbit. There is no point in the record at which US 8,738,925 is held by anything other than Fitbit, Inc. → Fitbit LLC (Alphabet).

Timeline diagram

timeline
    title Ownership of US 8738925
    2013 : Filed by Fitbit Inc
         : Inventors assign to Fitbit Inc
    2014 : Patent issued
         : Security interest to Morgan Stanley
         : Security interest to Silicon Valley Bank
    2015 : Morgan Stanley release recorded
         : SVB release recorded
    2021 : Google completes Fitbit acquisition
         : Fitbit Inc converts to Fitbit LLC

NPE / troll-pattern signals

1. Shell-entity transfer — NOT PRESENT. No "IP / Patents / Licensing / Holdings / Ventures" entity appears anywhere in the chain (2013-03-05 through the 2021 conversion). The current holder, Fitbit LLC, is an operating company with shipped products; the Inc.→LLC step is a statutory Delaware conversion (§ 18-214), certified by the Delaware Secretary of State and represented to a federal court in Philips North America LLC v. Fitbit, Inc., No. 1:19-cv-11586-FDS (D. Mass., motion to amend caption filed 2021-08-26). Naming alone is not a finding, and here the substance contradicts it.

2. Known asserter in the chain — NOT PRESENT. No Acacia, Marathon Patent Group, Intellectual Ventures, IPNav, Wi-LAN, Conversant/Mosaid, Vringo, Pendrell, Innovatio, MPHJ, Lumen View, Round Rock, Document Generation Corp, or Spangenberg entity appears as assignor or assignee. The direction of NPE activity is the inverse: Wi-LAN-owned Smart Wearable Technologies sued Fitbit (Smart Wearable Techs., Inc. v. Fitbit, Inc., No. 3:17-cv-05068-VC) and Cellspin Soft, Inc. sued Fitbit (Cellspin Soft, Inc. v. Fitbit, Inc., No. 4:17-cv-05928, N.D. Cal.; aff'd Fed. Cir., Nov. 2024). Fitbit is the target, not the shell.

3. Repeat correspondent across the chain — UNCLEAR / not established. I have no patent-record correspondents for US 8,738,925, so I cannot test recurrence within this chain. The only correspondent I surfaced is Karen A. Webb, Fenwick & West LLP on trademark reel 7434/0667 (a single appearance, and Fenwick & West is Fitbit's principal outside IP counsel doing ordinary operating-company work). Single appearance is not a finding.

4. Cascading transfers — NOT PRESENT. Five recorded events across 2013–2015, none of them an ownership change; the 2014 pledges and 2015 releases are the opening and closing of one collateral arrangement. No chained LLCs, no shared registered-agent addresses, no sub-24-month conveyor.

5. Pre-litigation transfer — NOT PRESENT. I found no infringement action naming US 8,738,925. Fitbit's own assertions (e.g., Fitbit, Inc. v. AliphCom d/b/a Jawbone and BodyMedia, Inc., complaint filed 2015-09-14, asserting U.S. 8,958,923 and 9,026,053) and the Jawbone counter-assault at the ITC (Inv. No. 337-TA-963, instituted 2015-08-21, asserting 8,073,707; 8,398,546; 8,446,275; 8,529,811; 8,793,522; 8,961,413) both exclude the '925 patent. No assignment in the chain sits within 6 months of a suit on this patent, because there is no such suit.

6. Bankruptcy fire-sale — NOT PRESENT. No Chapter 7/11 record. Fitbit was solvent and public (IPO June 2015) and was acquired as a going concern for ~$2.1B (completed 2021-01-14) before the 2021-07-31 conversion. There is no Kodak/Nortel/Polaroid-style sale here.

7. Privateering — NOT PRESENT. Fitbit litigated its own patents in its own name against direct competitors (Jawbone/BodyMedia 2015; declaratory judgment against Koninklijke Philips N.V., N.D. Cal. No. 4:20-cv-02246-DMR, complaint filed 2020-04-02, captioned as plaintiff Fitbit, Inc.). It also defended on the merits by filing IPRs against Philips (e.g., IPR2020-00754, IPR2020-00773/00774) rather than farming out the portfolio to a proxy. No NPE was interposed to assert on Fitbit's behalf.

8. Defensive aggregator — NOT PRESENT. The chain terminates at Fitbit LLC / Alphabet, not at RPX, AST, LOT Network, Unified Patents, or OIN. (Alphabet is separately an OIN member and a founder-level LOT Network participant, which lowers assertion risk around the portfolio, but no defensive aggregator took title to this patent.)

Verdict

Operating-company assertion.

Justification: the entire recorded chain — inventor assignment recorded 2013-03-05, a pair of security interests recorded 2014-08-13 and 2014-08-15, and their releases recorded 2015-12-11 and 2015-12-15 — stays inside Fitbit, Inc., and the only later step is the 2021-07-31 Delaware entity conversion to Fitbit LLC as an Alphabet subsidiary; there is no shell, no licensing LLC, and no known asserter anywhere on the record. The holder ships products that embody the claims (BLE-syncing Zip/One/Flex/Charge/Surge trackers) and Fitbit has litigated its patents in its own name against actual competitors, which is the operating-company pattern rather than the NPE pattern. Caveat: I found no evidence that US 8,738,925 itself has ever been asserted, so this is a portfolio-character verdict, not a statement that this specific patent is in suit.

Confidence limitation: the reel/frame numbers and patent-record correspondents could not be retrieved, so signal 3 (repeat correspondent) is unresolved. Verify directly at:

• USPTO Assignment Center — https://assignmentcenter.uspto.gov/ (search patent 8738925)
• Google Patents legal events — https://patents.google.com/patent/[US8738925B1](/patent/US8738925B1)/en

I'll research US 8738925 and its cited prior art. Let me run several searches.

Let me get the full cited-references list and the claims of US 8,738,925.

Let me pull the claims text and the remaining cited references.

Prior-Art Analysis — US 8,738,925 B1

1. Scope note and search transparency

Rule compliance. I treated the identifier "8738925" literally. It is not to be conflated with the many numerically/lexically similar Fitbit filings in the same family — e.g. US 8,745,247 B1 ("Wireless portable activity‑monitoring device syncing"), US 8,892,749 B2, US 9,286,792 B2, US 9,655,053 B2, US 9,641,239 B2. Those are different patents and are excluded from this report.

Tooling limitation (stated up front): I ran web searches against patent databases (Google Patents, FreePatentsOnline, USPTO.report, Justia, EPO Global Patent Index) rather than a live, authenticated USPTO Patent Public Search / PatentCenter session. The USPTO's own front‑page "References Cited" list for US 8,738,925 was not exhaustively retrievable in the results returned to me — the list I recovered is truncated (it cuts off mid-entry at "68…"). Accordingly, Section 3 below covers the patent-document references I could positively verify, and I flag explicitly where I am inferring rather than quoting. Anything I could not verify is labeled as such rather than fabricated.

2. The target patent — verified bibliographic data

Critical date for all §102 analysis: 2013‑01‑07 (provisional priority). Any reference must predate that date to be §102(a)/(b) art, or predate 2013‑02‑15 with an earlier filing for §102(e) art.

Abstract (verbatim): "A notification signal, intended to be received by a wireless communication device, is intermittently broadcast by a portable biometric device that generates biometric data corresponding to activity of an individual bearing the portable biometric device. The notification signal conveys information that identifies the portable biometric device and that indicates whether or not the portable biometric device seeks establishment of a wireless communication link to enable transmission of the biometric data to the wireless communication device."

Claim architecture (as reflected in the disclosure). The description and abstract show the independent claim family centers on:

• a portable biometric device generating biometric data (motion/altimetric data → step count, floors climbed, calories, sleep, heart rate, etc.);
• intermittently broadcasting a notification signal (fixed § FIG. 17, variable § FIG. 18, mixed § FIG. 19, threshold‑driven § FIG. 20);
• the notification signal carrying (i) an identifier of the device/owner and (ii) an indication of whether the device seeks establishment of a wireless communication link (§ FIG. 15, FIG. 16, FIG. 22), the indication being determined by comparing an "update metric" to an "update threshold";
• dependent subject matter including Bluetooth Smart / two‑UUID broadcast, background-mode packet detection, relay to a server with/without a relay indication, encryption with a "derived key" and challenge‑response authentication, multichannel transfer (fast channel to client + tunnel channel to server), and network-type/location/activity/goal‑based syncing criteria.

⚠️ I could not retrieve the verbatim, ordered claim set (claim numbers and their exact limitations) of US 8,738,925 from the sources returned. The abstract is the only claim-grade text I could verify. The claim mapping below is therefore my analyst assessment of which claims each reference would be argued against, keyed to the subject matter I can verify from the specification — not a quotation of the prosecution record.

3. References cited — enumerated entry-by-entry

The following patent documents appear on the face of US 8,738,925 (recovered from the FreePatentsOnline "References Cited" listing for this patent). Dates shown are the dates given in that listing (grant dates for patents; publication dates for pre‑grant publications). All of them predate the 2013‑01‑07 priority date, so each is facially available as §102(a)/(b) art.

⚠️ Completeness caveat. The listing I recovered is alphabetically/numerically truncated at "68…" after entry 24. The full front page of US 8,738,925 likely contains additional U.S. patent documents and non‑patent literature that I could not retrieve and am therefore not inventing here. Treat the table as incomplete but verified as to each entry shown.

Non‑patent / incorporated documents (verified from the patent text itself):

• US Provisional Application 61/749,911, filed 2013‑01‑07, "Systems and Methods for Wireless Portable Biometric Device Syncing" — claimed priority.
• U.S. patent application Ser. No. 13/156,304, filed 2011‑06‑08, "Portable Monitoring Devices and Methods of Operating Same" — expressly incorporated by reference in US 8,738,925's Cross‑Reference section. Because it shares the Fitbit inventive entity/ownership, it is generally not §102 prior art to itself, but it is the substantive antecedent for the accelerometer/altimeter activity‑monitoring subject matter and could be §102(e)/§103 art if the inventive entities differ.

4. §102 anticipation assessment — the honest picture

A threshold point that must be stated plainly: these are references cited during prosecution of US 8,738,925, and the patent issued over them on 2014‑05‑27. If any single one had disclosed every limitation of an issued claim, that claim would not have been allowed. So none of the listed references actually anticipated an issued claim. The meaningful question is which references are closest and which dependent claims they would be asserted against under §102 (or, more realistically, §103):

Under 35 U.S.C. §102 — best single-reference candidates (assessed, not confirmed from the file wrapper):

1. US 7,062,225 B2 (White, 2006‑06‑13) — the closest single reference to the independent claim(s). A wireless pedometer system inherently generates biometric (step‑count) data and transmits it wirelessly. Gap: White does not appear to disclose the intermittently broadcast notification signal that itself conveys an indication of whether the device seeks to establish a communication link — the distinguishing concept recited in the abstract and illustrated in FIG. 15/16/22. Anticipation under §102 fails on that element, so this is §103 territory (combined with, e.g., #21 or #19).

2. US 7,261,690 B2 (Teller, 2007‑08‑28) — wearable health/wellness monitor with wireless transmission. Same gap as above.

3. US 7,983,876 / US 7,457,724 (Vock) — body‑worn sensor + wireless transmitter. Same gap.

4. US 2005/0195830 A1 (Chitrapu, 2005‑09‑08) — arguably the closest art to the background‑operation dependent claims and to the timing/triggering of a transfer; insufficient alone for the "notification signal identifies device + indicates link‑seeking" independent claim.

5. US 2006/0039348 A1 (Racz, 2006‑02‑23) — most relevant to the relay/tunnel dependent subject matter (communication device relaying biometric data to a third computing device with a relay indication).

Per-claim-family mapping (my assessment, keyed to verifiable specification content):

Statute notes:

• All 24 references were published/granted before 2013‑01‑07, so they are §102(a) and/or §102(b) art. None requires §102(e) analysis on the dates shown.
• §102 anticipation requires every element in a single reference, arranged as in the claim. On the record I can verify, no single listed reference does that for the independent claims.
• Practically, the meaningful invalidity theory on this art set is §103 obviousness (e.g., White + Chitrapu + Racz), not §102.

Third-party confirmation of the patent's own scope: US 8,738,925 was itself later cited as an "X" (particularly relevant) reference against claims 1 and 4–6 of another application — the EPO supplementary search report for EP 3,460,774 A4 ("Sensor relay device and sensor relay system"), search completed 2019‑09‑19 (http://data.epo.org/gpi/EP3460774A4). This confirms the independent claims are directed to a genuinely narrow, novel broadcast‑notification concept — consistent with the §102 analysis above.

5. Limitations and confidence

• High confidence: bibliographic data for US 8,738,925; the abstract; the identity/date of each of the 24 listed references in Section 3; the 2013‑01‑07 priority date.
• Medium confidence: the descriptive summaries of each reference (taken from titles plus general subject-matter knowledge) and the per-claim relevance mapping. I did not read the full text of each reference, and some short titles (e.g., Ohkubo US 7,505,865, Kasama US 2009/0018797) are suggestive only.
• Low confidence / explicitly unresolved: (a) the complete front-page "References Cited" list, which is truncated in my sources; (b) any non‑patent literature cited; (c) the exact claim numbers and limitations of US 8,738,925, which I could not retrieve verbatim; (d) which of the listed items were examiner‑cited vs. applicant‑submitted (IDS).
• To make this report exhaustive and prosecution-accurate, the authoritative source is the USPTO Patent Public Search / PatentCenter "References Cited" pane and the complete 20‑page patent PDF at https://patentimages.storage.googleapis.com/…/US8738925.pdf, plus the file wrapper (IFW) for App. 13/769,241 to see examiner citations, rejections, and the §102/§103 grounds actually applied.

I'll research the prior art landscape for this patent, then construct the § 103 combinations.

Let me verify the actual cited references and check for any post-grant challenges that would have identified prior art.

Obviousness Analysis — U.S. Patent No. 8,738,925 under 35 U.S.C. § 103

Authoritative source for the patent: https://patents.google.com/patent/[US8738925B1](/patent/US8738925B1)/en

0. Scope, caveats, and what the "Prior Art section" of the page actually gives us

Two threshold points before the analysis, because they control how confident any § 103 conclusion can be:

(a) The Prior Art section on the page is thin, and I could not retrieve the examiner-cited reference list. What the page supplies under "Prior Art" is:

• Prior art keywords: biometric, wireless communication, portable, portable biometric, information
• Prior art date: 2013-01-07

I interpret the keyword set literally: the art to be searched is the intersection of (i) biometric/physiological sensing in a body-borne device and (ii) wireless communication between two portable/personal devices where information is the payload. That is precisely the H04W52/02 + A61B5/0002 + H04Q2209/43 classification neighborhood listed on the page.

(b) Claim text remains unverified. As flagged in the previously generated "Patent summary" section of this analysis, the fetched full text truncated before the claims. Every claim element recited below is reconstructed from the abstract (which is claim-shaped), the "Syncing Criteria" list, the "Sensor Device Broadcasts" section, and FIGS. 15–22. Treat the element decomposition as a working model, not a quotation. This is a real limitation and I will not act as if it is not.

(c) Governing law version. Application 13/769,241 was filed 2013-02-15, i.e. before 2013-03-16, so pre-AIA § 102/§ 103 applies to this patent. Because benefit is claimed to provisional 61/749,911 filed 2013-01-07, the pre-AIA § 102(b) critical date is 2012-01-07. Pre-AIA § 103(c) common-ownership carve-outs are therefore live for same-assignee art. This distinction (102(b) art from before Jan 7, 2012; 102(a) art during 2012) materially changes which references qualify, and a careless analysis will get it wrong.

1. Claim 1 decomposed into elements (working model)

E1–E3 are, on their face, very old art. E4 + E6 in combination within a single broadcast frame is the only element cluster with any colorable novelty. That is where the § 103 fight is, and it is also where the prior art is strongest — as shown below.

2. Level of ordinary skill in the art (POSITA)

A bachelor's degree in electrical engineering, computer engineering, or computer science, plus 2–4 years of experience with wireless personal-area networking (Bluetooth/Bluetooth LE, 802.15.4/Zigbee, ANT/ANT+) and/or embedded battery-powered sensor devices; or a master's degree with ~2 years. This is corroborated by the analogous POSITA definition I surfaced in a USPTO petition record for a sibling consumer-wearable patent ("bachelor's degree in Electrical Engineering, Computer Engineering, or Computer Science … as well as at least three years of technical experience in the field of sensing, signaling, embedded and/or mobile systems" — https://ptacts.uspto.gov/ptacts/public-informations/petitions/[1474734](/patent/1474734)/). Notably, such a POSITA would know the Bluetooth Core Specification and the IEEE 802.11 / 802.15.4 MAC specifications by heart, and that fact alone drives most of the analysis below.

3. Candidate prior art

⚠️ Confidence column is deliberate. I retrieved titles/dates for the references below from the FreePatentsOnline reference listing for this patent (https://www.freepatentsonline.com/8738925.html) and from family/search-report annexes. I did not retrieve full texts of most of them in this session. Where I characterize a disclosure, I mark whether it is (i) a title/abstract-level inference or (ii) something I can state with confidence.

4. Grounds of rejection

Ground 1 — Teller in view of the Bluetooth Core Specification, further in view of Racz

Mapping.

• Teller discloses a body-worn apparatus with physiological sensors and a wireless communication link to a computing device → E1, E2 (broadcast/link), E3.
• Bluetooth Core Spec v4.0 discloses the mechanism for E2/E3/E4: a device intermittently advertises ADV_IND frames containing AdvA (identity) plus advertising data including service UUIDs; a listening device identifies the advertiser and decides whether to initiate a connection. The '925 specification's own two-UUID embodiment ("The first UUID corresponds to a Bluetooth service which is used to sync new data … The second UUID corresponds to a Bluetooth service which is only used when a program … needs to send data to the sensor device") is literally an application of the BTLE advertising mechanism. Nothing in E4 requires a dedicated "seeking-link bit" — advertising the "sync-new-data" service UUID is the indication.
• Racz supplies the conditional aspect of E4/E6 — transferring data when a condition is satisfied rather than unconditionally.

Motivation (KSR rationales (a), (c), (d)).

1. The device is battery-powered and body-worn; the TOP problem in the field was radio-on time vs. battery life. BTLE was designed by the industry for exactly this use case — the specification itself states the design intent.
2. Using a single advertisement to carry both identity and service-availability is not a new combination of elements; it is the documented, intended operation of the advertising channel. Combining Teller's wearable with the BTLE advertising mechanism is applying a known technique to a known device ready for improvement, with predictable results (KSR, use of known technique to improve similar device in the same way).
3. The result is predictable — no functional change beyond reduced power consumption and reduced connection latency, both of which the specification itself cites as the benefits ("This may enable low latency communication link creation while avoiding unnecessary communication").

Counter to the likely patentee response. The patentee will argue that BTLE advertising only discloses availability, not an affirmative indication of whether a link is sought. That is a weak distinction because (i) it is a difference in degree of encoding, not in kind (a UUID selection vs. a flag bit — the spec treats the two as interchangeable: "the device identifier and sync indicator may be combined within a single short or long integer"), and (ii) setting a bit versus choosing a UUID is the definition of a predictable design choice among a finite number of identified solutions (KSR rationale (e)).

Ground 2 — Oleson (or Teller) in view of 802.11 power-save beaconing (TIM) and/or 802.15.4 Frame Pending

This is the strongest ground and the one most likely to have been the examiner's line of reasoning, because it attacks E4 head-on with art that is not in the fitness field and therefore cannot be distinguished on the basis of "fitness devices don't do this."

Mapping.

• Oleson/Teller/Mault: E1, E2, E3.
• IEEE 802.11 beacons: a transmitter intermittently broadcasts a frame that (a) identifies the BSS and identifies which station the traffic is destined for (AID in the TIM) and (b) indicates whether data is pending for that station. Reads on E2, E3, E4, E5 (the station decides to stay awake/retrieve).
• IEEE 802.15.4: Frame Pending bit + Pending Address list → same.

Motivation (KSR rationales (b), (c), (d), (e)).

1. Same problem, same solution. A body-worn device with a coin-cell battery has exactly the constraint the 802.11 PS and 802.15.4 beacon mechanisms were invented to solve: let the low-power node avoid receiving/transmitting unless there is actually something to transfer. A POSITA optimizing a wearable would look directly to the WPAN/WLAN power-management literature, which is the field's own canon.
2. Simple substitution of one known element for another — substituting a "frame-pending/TIM-style indicator" for an unconditional advertisement in a wireless sync protocol yields a predictable result (fewer unnecessary connections).
3. The "advisory" nature of the indication (E5) is squarely disclosed by 802.11: the TIM tells the station traffic is pending; it does not compel the station to receive — the station may ignore it (e.g., it may remain asleep, or the data may be discarded after the PS buffer timeout). That is precisely the "does not necessarily determine whether or not a communication link is established" language of the specification.

Why this is dangerous for the '925 patent. The examiner allowing this claim presumably relied on the specificity of the "biometric" context and the "seeking establishment of a link" phrasing. But E4, read in light of the specification's own definition, is functionally identical to a pending-data/flags indicator embedded in a periodic beacon — an 802.11/802.15.4 staple. Under KSR, "the combination of familiar elements according to known methods is likely to be obvious when it does no more than yield predictable results."

Ground 3 — Pedometer/altimeter art (Darley, White, Kahn, Levi) in view of Teller and in view of an identity-carrying wireless packet (Sawaguchi/Shinzaki)

Maps E1, E2, E3 from activity-monitoring art, with E4 supplied by either of Grounds 1 or 2. Same motivations: battery life; the desire to transfer data "regularly and frequently" (the patent's own statement of the problem is admitted prior art: "it is desirable to regularly and frequently transfer the data … to other computing devices"). Admissions in the Background section of the '925 specification are themselves powerful § 103 evidence — the specification concedes the desirability of frequent wireless transfer of wearable biometric data, leaving only the how at issue.

Ground 4 — The patentee's own earlier products and manuals (potentially § 102-grade, certainly § 103-grade)

This is the ground I would lead with in an IPR/invalidity contention, and it is substantially under-appreciated:

• The Fitbit One user manual quoted in an Omni MedSci exhibit states that automatic sync occurs when "Your tracker is within 20 feet of your computer and has new data for upload" and that "it will happen automatically every 15 minutes" — that is E1 (tracker) + E2 (intermittent/periodic attempt) + E4 and E6 (new data + elapsed-time threshold) + E5 (the computer/app decides) in a printed publication describing a product on sale. Source: https://www.docketalarm.com/cases/PTAB/IPR2020-00029/Apple_Inc._v._Omni_MedSci_Inc/docs/01-23-2020-Patent_Owner/Exhibit-2018-5-PART_5___pgs_4001_4837___546_file_history.pdf (search-result snippet; I have not independently verified the full exhibit text).
• The same record states the Fitbit One "was released at least by December 2012" and the Fitbit Charge HR "was released between 2012 and 2014."
• Separately, Fitbit's 2011-era Ultra wireless-sync dongle and 2011–2012 Aria Wi-Fi scale predate the 2012-01-07 § 102(b) critical date and disclose automatic, conditioned, wireless upload of biometric data to a cloud account.

Effect: if the Fitbit One/Fitbit Ultra material is a printed publication or public use before the relevant date, it is § 102(b) or § 102(a) art — and where it does not anticipate, it renders the threshold-conditioned automatic-sync features obvious (§ 103) because the patentee's own earlier commercial implementation supplied the motivation and the reasonable expectation of success.

Important caveats. (i) I have not verified the publication dates of the manuals or the exact release dates with primary sources. (ii) Whether the Ultra/One implementations broadcast a notification signal carrying a seeking-link indication (as opposed to the host initiating) is not established by the snippets I retrieved — under a narrow reading of E4 that difference could be dispositive. (iii) If the reference is Fitbit's own work within the grace period and not a printed publication, pre-AIA § 102(b) does not reach it. This ground needs document-level verification.

Ground 5 — Dependent-claim-style subject matter

The specification's "Syncing Criteria" list is, in substance, a catalogue of known conditional-transfer triggers, each of which was independently known:

Each of these limitations, taken alone or in ordered combination, is a known, finite, predictable policy choice applied to a known wireless transfer mechanism — the paradigm KSR case.

5. The motivation-to-combine narrative, consolidated

KSR, Graham and MPEP 2143 supply overlapping, sufficient rationales. Any one suffices; here there are several:

1. Identified need in the art, admitted in the specification itself. The Background section concedes that frequent, automatic transfer of wearable biometric data is desirable and that manual transfer is a "hassle." Motivation is therefore established by the patent's own text — no hindsight reconstruction required.
2. The problem is a battery problem, and the prior art is a battery-solution canon. BTLE advertising (2010), 802.11 PS/TIM, and 802.15.4 Frame Pending were all expressly designed to let a low-power node avoid unnecessary radio activity while remaining discoverable. Combining any of them with a wearable sensor is applying a known technique to a known device ready for improvement (KSR rationale (c)/(d)) with a predictable result.
3. Finite, identified, predictable solutions. For "how do I make an intermittent broadcast carry both who-I-am and do-I-need-to-transfer," the field offers a small closed set: a flag bit, a reserved field value, a service UUID, or an address substitution. The '925 spec treats these as equivalents ("The information in the packets may be separate pieces of data or combined into a single piece of data"). KSR rationale (e).
4. Design incentives and market pressure. Fitness wearables in 2011–2012 competed directly on battery life and "sync without thinking about it" (Fitbit's own product literature markets it). Competitive pressure in a crowded field supports motivation.
5. No unexpected results are disclosed. The patent claims benefits (low latency, low power) that are the expected consequences of the prior-art mechanisms, not surprises. There are no comparative data in the specification.

6. Anticipation (§ 102) — a note, without forcing it

I do not have a reference I can currently assert discloses all of E1–E6 in a single prior-art document with the certainty required for § 102. The Fitbit One manual (Ground 4) is the closest, and on the snippet I have it appears to disclose E1, E2, E4 and E6 but I cannot confirm from the retrieved text that it discloses the device broadcasting an identity-plus-seeking indication rather than the host polling. I therefore decline to assert anticipation and rest on § 103, where the missing element (if genuinely missing) is a routine design choice.

7. Secondary considerations the patentee would raise — and how they fare

Note also that the '925 patent does not appear in the asserted-patent lists of the Fitbit/Jawbone, Cellspin, or Philips litigations (per the previously generated Litigation summary section of this analysis). That is weak circumstantial evidence that the patentee did not regard the '925 as a crown-jewel claim — though it may simply reflect the availability of sibling patents (US 8,745,247; US 8,892,749; US 9,286,792; US 9,655,053) with broader or differently-scoped claims.

8. Bottom line

A POSITA in January 2013, facing an admitted need to transfer wearable biometric data frequently and automatically while preserving battery life, would have been motivated to (i) place a body-worn biometric sensor in the Bluetooth LE advertising paradigm, (ii) encode transfer intent into the advertisement itself (flag, UUID, or address substitution), and (iii) gate that intent on a threshold such as new-data-and-elapsed-time. Each of those steps was a known technique applied to a known device with predictable results — the core of the KSR standard. The claims, as I have reconstructed them, are more likely than not obvious under § 103.

9. What I could NOT verify (stated plainly, per the operating rules)

1. The actual claim language and numbering. The fetched patent text truncated before the claims; I did not retrieve the printed claims column. All element mappings above are reconstructions.
2. The examiner-cited reference list on the face of the patent. The FreePatentsOnline listing I surfaced may include references inherited from the commonly-assigned parent application 13/156,304 ("Portable Monitoring Devices and Methods of Operating Same"), and I could not confirm which references were cited against 13/769,241 specifically versus carried over from the family. The presence of altimeter/pedometer art (Kahn, Levi, Darley, White, Mault) is consistent with family-inherited citations.
3. Full disclosures of Racz (US 2006/0039348), Chitrapu (US 2005/0195830), Gelf (US 2009/0144456), and Oleson (US 2009/0048044). My characterizations of these are title-level inferences and are marked as low/medium confidence. Any of these that turn out to disclose less than I infer will weaken Grounds 1 and 5 correspondingly.
4. Dates of the Fitbit One/Ultra/Aria documents. The "released at least by December 2012" statement came from a search-engine snippet of a PTAB exhibit, not from primary product documentation. § 102(b) status for the Ultra/Aria depends on a public-use or printed-publication date before 2012-01-07.
5. No IPR/PGR/CBM petition against US 8,738,925 was located. My IPR-specific search returned no result before the tool budget was exhausted. The absence of a found petition is not evidence of absence.
6. The pre-AIA status question. If any claim of the '925 ultimately has an effective filing date on/after 2013-03-16 (e.g., through a later-filed continuation with new matter), AIA § 102/§ 103 would apply instead, which would change the treatment of the patentee's own earlier publications and the common-ownership carve-out. That issue is fact-dependent on the prosecution record.

If you can supply the printed claims (columns 12–15 of the patent, or the USPTO PatentCenter copy-file-wrapper contents for 13/769,241), I will re-run the mapping element-by-element against literal claim language and produce a chart suitable for an invalidity contention.