US 8337229

I'll verify the patent details against live sources, including any litigation/docket information.

Let me look for the actual granted claims of US8337229 and any Federal Circuit/CAFC activity.

Let me try to retrieve the granted claim set for US8337229 itself.

US Patent 8,337,229 — Verification Summary

Bottom line: I could verify bibliographic data, the abstract, and the specification against live sources, but I was not able to retrieve the literal granted claim text of US 8,337,229 itself from a source fetched in this session. I also found no evidence of any 2026 CAFC (Federal Circuit) docket activity involving this patent. Details and caveats below.

1. Bibliographic data (verified)

Confusion warning — do not attribute to '229: The same specification and title are shared by a large PPC continuation family. Web search results surfaced US 8,529,279, US 8,550,835, US 8,920,182, US 8,920,192, and US 9,178,290, all of which claim priority through application 13/016,114 (the '229 application). Any claim text, litigation hit, or IPR reference tied to those numbers is not claim text or activity for US 8,337,229.

2. Abstract (verbatim, as published)

"A connector having a nut-body continuity element is provided, wherein the nut-body continuity element electrically couples a nut and a connector body, thereby establishing electrical continuity between the nut and the connector body. Furthermore, the nut-body continuity element facilitates grounding through the connector, and renders an electromagnetic shield preventing ingress of unwanted environmental noise."

3. Plain-language overview of the independent claims

Caveat first: The claims section was not present in the material I retrieved, so I cannot quote or count the claims of US 8,337,229. What follows is drawn from the patent's "Summary" section, which in this patent family typically mirrors the independent claims (five "general aspects"). Treat this as a high-confidence description of the disclosed independent subject matter, not as verbatim claim language.

Aspect / independent claim 1 — Axial continuity (apparatus).
A coaxial cable connector has (a) a connector body attached to a post, with first and second ends; (b) a port coupling element (nut) that rotates about the post and is separated from the connector body by a distance (i.e., a gap exists between them); and (c) a continuity element placed in that gap, near the second end of the connector body, which establishes and maintains electrical continuity between the connector body and the nut. Plainly: a conductive washer/ring-like part bridges the mechanical gap between the rotating nut and the body so the ground path never opens, even when the connector is loose on the port.

Aspect / independent claim 2 — Axial continuity with specified contact surfaces (apparatus).
Same connector, but the structure is defined more tightly: the connector body has an annular outer recess near its second end; the nut has an internal lip; and the continuity element has a first surface axially separated from a second surface — the first surface contacting the nut's internal lip and the second surface contacting the body's outer annular recess. The element thereby facilitates grounding of the cable through the connector. Plainly: a bent/waved conductive washer sits between the nut's internal lip and a groove on the outside of the body, with its two contact points offset along the connector axis so it can flex and spring-load both contacts.

Aspect / independent claim 3 — Same structure, expressed as means-plus-function.
Identical to Aspect 2 but the continuity element is recited as a "means for establishing and maintaining physical and electrical communication between the connector body and the port coupling element." (A §112(f) claim; scope would be limited to the corresponding structures disclosed — conductive rings/washers, wave washers, C-shaped or semi-circular members — and equivalents.)

Aspect / independent claim 4 — Radial continuity (apparatus).
Same connector, but the continuity element establishes and maintains electrical communication in a radial direction: a first surface of the element contacts an inner surface of the nut, and a second surface contacts the outer annular recess of the body. The specification describes this embodiment (FIGS. 13–16, element 275) as an elliptical ring with a major radius reaching the nut's inner wall and a minor radius sitting against the body's outer surface, plus radial offset r₁ > r₂. Plainly: the spring ring is squashed/oval and wedged radially between nut and body rather than compressed axially.

Aspect / independent claim 5 — Method.
A method for facilitating grounding of a coaxial cable through the connector, comprising: (i) providing a connector having a connector body attached to a post with first and second ends, and a port coupling element rotatable about the post and separated from the body by a distance; and (ii) disposing a continuity element between the port coupling element and the connector body near the body's second end, the continuity element establishing and maintaining electrical continuity between the body and the nut.

Shared technical substance across all aspects: the continuity element is conductive (conductive polymers/plastics/elastomers, metals, soft metals, conductive rubber, etc.), may be rigid, semi-rigid, or resilient/flexible, and in the bent configuration creates a biasing relationship that is said to maintain constant contact as the nut/body move relative to one another. The specification expressly states that the element need not extend 360° (it may be a half-circle, crescent, semi-circle, or C-shape) and that it does not impede free rotation of the nut about the stationary post, and need not itself rotate. Importantly, the specification is framed around the problem that dimensional variation in the cable's conductive foil layer makes post-to-foil contact unreliable, so a nut-to-body continuity path is provided as an alternative/additional grounding route.

4. Litigation and CAFC docket check (what I found — and did not find)

• Patent-level litigation flag: Google Patents lists a U.S. case in the Northern District of New York, case 5:13-cv-00460 as family litigation, and separately flags "first worldwide family litigation." I did not verify the parties, patents asserted, or outcome in this session, so I make no representation about it.
• 2026 CAFC dockets: I found no CAFC activity in 2026 for US 8,337,229. I am stating this as a negative result of my searches, not as a certified docket clearance; a PACER/CAFC docket check would be required to confirm.
• Related (but distinct-patent) Federal Circuit history that a searcher will hit and should not conflate:
  • PPC Broadband, Inc. v. Corning Optical Communications RF, LLC, 815 F.3d 747 (Fed. Cir. 2016) — construed "reside around" in U.S. 8,323,060 (a sibling continuity-member patent, not '229).
  • PPC Broadband, Inc. v. Iancu — remand proceedings on the "maintain electrical continuity" limitations of the '060, '353 ('8,313,353), and '320 ('8,287,320) patents, not '229.
  • PPC Broadband v. Corning Optical Communications, No. 17-1347 (Fed. Cir.) — per curiam affirmance of a ~$61M willful-infringement judgment against Corning; the patents litigated were PPC continuity-member patents, but I have not verified that '229 was one of them.
  • Numerous IPRs by Corning (IPR2013-00340/-00342/-00343/-00345/-00346/-00347, IPR2014-00440/-00441, IPR2016-01570/-01572) target '060, '353, '320, '7,041, and '8,366,481 — again not '229.

5. Explicit uncertainty statement

1. Claim text of US 8,337,229: not retrieved; I cannot confirm the number of claims, the exact wording of claim 1, or the dependent-claim hierarchy. The five aspects above are from the patent's own Summary section and are a faithful description of the claimed subject matter's scope as summarized by the applicant, not verbatim claims.
2. CAFC 2026 activity: I found none for '229. This is a search result, not a docket certification.
3. N.D.N.Y. 5:13-cv-00460: existence is reported by Google Patents' litigation metadata; parties, asserted patents, and disposition are unverified here.
4. Assignee: Google Patents carries "PPC Broadband Inc." as current assignee with the John Mezzalingua → MR ADVISERS → PPC Broadband name-change chain; I did not independently confirm the current USPTO assignment record in this session.

Recommended verification steps if you need authoritative claim text or docket certainty: pull the '229 patent PDF from USPTO PatentCenter/Patent Public Search (or Google Patents "US8337229B2" full document, which includes the claims), and query PACER/CAFC CM-ECF directly for the patent number and for PPC Broadband as a party.

Litigation involving U.S. Patent No. 8,337,229

Bottom line: Based on my searches, I could confirm one district court case in which U.S. Patent No. 8,337,229 ("the '229 patent," Connector having a nut-body continuity element and method of use thereof, issued Dec. 25, 2012 to Noah Montena, assigned to PPC Broadband, Inc.) was actually asserted. The '229 patent is part of the PPC "continuity connector" patent family that was litigated extensively, but most of the well-known PPC/Corning, PPC/PCT, and PPC/PerfectVision cases that surface in searches were pleaded on other PPC patents (e.g., U.S. 8,366,481; 8,323,060; 8,475,353; 8,366,237), not on the '229. I flag that distinction because search results frequently return those related family cases.

1. PPC Broadband, Inc. d/b/a PPC v. Times Fiber Communications, Inc.

U.S. District Court for the Northern District of New York — Case No. 5:13-cv-00460 (TJM/DEP)

What was asserted: The complaint pleaded four patents (the '229 patent, the '237 patent, the '353 patent and the '060 patent). Per the court's claim-construction ruling, the parties voluntarily dismissed the three other patents, leaving only the '229 patent in suit. The '229 was accused of infringement under 35 U.S.C. § 271, with allegations of willfulness and a request for treble damages, injunction, and fees.

*Substantive ruling (claim construction, 2015 — PPC Broadband, Inc. v. Times Fiber Commc'ns, Inc., Sharpe, C.J.):* The district court adopted in their entirety Magistrate Judge David E. Peebles' Report & Recommendation constructions, overruling Times Fiber's objections. Key constructions:

• "a connector body attached to a post" — construed as "a post and connector body, which are separate components of the connector (i.e., they are not a single integral component), that are interlocked with one another to prevent axial movement of one relative to the other." Times Fiber argued Figure 10 (integral post/connector body) showed the claim should cover an integral unit; the court rejected that because Figure 10 could be covered by non-asserted claims 1 and 9, which recite only "connector body."
• "radial end face surface extending from the inner surface / inner surface portion" — adopted as recommended.
• "axial direction" — adopted as recommended.

Sources: GovInfo, N.D.N.Y. 5:13-cv-00460 opinion; PPC complaint (RPX Insight copy); Studicata case summary.

Litigation-entry flag on the patent record

The Google Patents record for US 8,337,229 carries a "Family has litigation" entry pointing to a U.S. case filed in the Northern District of New York, case 5:13-cv-00460 (Unified Patents litigation data) and a Darts-IP first-worldwide-family-litigation entry. This corroborates Case 1 above as the anchor litigation for this patent family. (US8337229B2 on Google Patents)

Cases I found that I could NOT confirm involved the '229 patent

I searched these because they are commonly cited in the same PPC connector litigation web, but the search results tie them to other patents or do not identify the patents-in-suit. I am listing them so you can exclude them, not as known '229 litigation:

• PPC Broadband, Inc. v. PCT International, Inc., N.D.N.Y. No. 5:13-cv-00135 (filed 2013) — complaint pleaded U.S. 8,366,481 (Ehret/Haube/Montena/Zraik), not the '229.
• PPC Broadband, Inc. v. Corning Gilbert, Inc., N.D.N.Y. Nos. 5:13-cv-00538, 5:13-cv-1310, and 11-cv-00761 — part of the Corning/PCC disputes that spawned the 2013 Corning IPRs (IPR2013-00340, -342, -345, -346, -347), which addressed the '060, '320 and '353 patents. I found no confirmation the '229 was asserted.
• Corning Optical Communications RF, LLC v. PPC Broadband, Inc., D. Ariz. No. 2:12-cv-02208-SMM (filed Oct. 15, 2012) — Corning's affirmative case on the "Bence patents" ('990 and '612), not the '229.
• ITC Inv. No. 337-TA-938 (Certain Coaxial Cable Connectors…) — PPC v. Corning Optical Communications RF; patents-in-suit not confirmed as including the '229 in my results.
• PerfectVision Manufacturing, Inc. v. PPC Broadband, Inc. (a/k/a PVM), E.D. Ark. No. 4:12-cv-623-JLH — invalidity contentions in the record list the '740, '205, '430, '431, '845, '481 and '360 patents, not the '229.
• PPC Broadband, Inc. v. PerfectVision Manufacturing (PVM), E.D. Ark. No. 4:22-cv-00163-LPR — 2022–2024 antitrust/counterclaim litigation over the "continuity F-type connector" market; I could not confirm the '229 was a patent-in-suit.
• PTAB IPRs (Amphenol Corp. v. PPC Broadband, IPR2022-00718/-00719/-00720/-00721; Fed. Cir. Nos. 2024-1776 to -1779, aff'd March 4, 2026) and PPC Broadband v. Times Fiber, IPR2022-00946 — these are IPR (PTO) proceedings, not district court litigation, and I could not confirm the '229 was among the challenged patents.

Caveats / limits of this answer

• I interpret "litigation" as district court case(s); IPRs, ITC § 337 investigations, and appeals are noted separately above. If you want IPR/PTAB proceedings folded in, say so and I can run a targeted PTAB docket search (I did not confirm any IPR naming US 8,337,229 as the challenged patent).
• Outcome/current status of Case 1 is not confirmed in the sources I retrieved. I found the Markman ruling but not a docket entry showing settlement, dismissal, judgment, or appeal. PPC's and Times Fiber's later dealings (including the 2022 IPRs and the 2022 E.D. Ark. case with PVM) suggest a settlement-heavy history, but I will not assert a specific disposition without a docket citation.
• Docket numbers are reproduced literally as they appear in the sources (e.g., "5:13-cv-00460-TJM-DEP" and the variant "5:13-cv-460-TJM-DEP"), and I have not normalized or auto-corrected them.

Proceedings overview

Total AIA trial proceedings on U.S. Patent No. 8,337,229: zero. The structured "PTAB proceedings on file" block (USPTO Open Data Portal) returns no IPR, PGR, or CBM for this patent, and independent searching surfaced no IPR/PGR/CBM petition naming the '229 patent as the challenged patent — so the breakdown is 0 active / 0 claims invalidated / 0 claims sustained / 0 settled / 0 institution-denied. Defensive posture: the '229 patent has never been tested at the PTAB, so it is neither "hardened" nor "hollowed out" — every claim is untested and fully available to be challenged, and no § 315(e)(2) estoppel attaches to anyone. That said, the '229 is a sibling of a PPC patent family that was hit hard by Corning and Amphenol IPRs, so the art and expert ecosystem for attacking it already exists in public PTAB records.

No proceedings to report

There are no proceeding headers to write. To avoid any risk of fabrication, I am not inventing proceeding numbers, panels, or dispositions for this patent.

What I checked and what I found (flagged per your instruction):

1. ODP structured block — empty (no AIA trial proceedings).
2. Web search — no IPR/PGR/CBM petition against the '229 surfaced. The closest matches are IPRs against other PPC patents in the same technical family. These are not proceedings on the '229 and must not be cited as such:
   • Corning Optical Communications RF, LLC v. PPC Broadband, Inc. — IPR2013-00340, -00342, -00343, -00345, -00346, -00347, covering U.S. Pat. Nos. 8,232,060; 8,323,060; 8,313,353; and 8,287,320 (consolidated oral hearing 2014-07-24/25; panel: APJs Jameson Lee, Josiah C. Cocks, Jackie Wright Bonilla). Appeals: PPC Broadband, Inc. v. Corning Optical Communications RF, LLC, 815 F.3d 747 (Fed. Cir. 2016) ("reside around" construed as "encircle or surround"; vacated and remanded), and Fed. Cir. No. 17-1362 (2018-07-03, nonprecedential).
   • Amphenol Corp. v. PPC Broadband, Inc. — IPR2022-00718 and IPR2022-00721 (and IPR2022-00720) on U.S. Pat. Nos. 9,225,083 and 10,038,284 (panels including APJs Bart Gerstenblith, Frances Ippolito, George Hoskins; FWDs 2023, appealed).
3. Litigation (not PTAB) — the '229 patent has been asserted and construed in district court: PPC Broadband, Inc. v. Times Fiber Communications, Inc., No. 5:13-cv-00460 (N.D.N.Y.) (the litigation entry in the structured block), plus the earlier Corning N.D.N.Y. actions. In the Times Fiber case the court adopted a construction of "a connector body attached to a post" requiring separate, non-integral components ("interlocked with one another to prevent axial movement of one relative to the other") — a narrowing construction, but a court ruling, not a PTAB claim cancellation.

Strategic summary

Claim status: all claims of the '229 patent are UNTESTED at the PTAB. Nothing has been canceled, nothing sustained, nothing disclaimed by a Board decision. Compare that to the family's siblings: the Corning IPRs canceled claims in the '060, '320, and '353 patents (with the '060 claims later restored on remand after the Federal Circuit's "reside around" construction), and the Amphenol IPRs reached FWDs on the '083 and '284 patents. The '229, notably, was never pulled into that wave — it was litigated instead (Times Fiber, and the earlier Corning N.D.N.Y. suits), where it survived to a claim-construction order rather than a validity judgment. Treat "no IPR" here as absence of data, not as evidence of strength or weakness.

Estoppel landscape: clean slate. Because there has been no IPR/PGR on the '229, no petitioner is subject to § 315(e)(2) estoppel on this patent, and there is no IPR-driven record estoppel to exploit. A defendant today can raise any § 102/§ 103 ground in district court, in any forum (IPR, PGR — note the '229's 2011 filing date makes it ineligible for PGR), and can also file an IPR without worrying that a prior petitioner has already burned the art. Conversely, there is no petitioner-privity chain to inherit: you cannot free-ride on somebody else's invalidity work product as a § 315(e) matter, though you can mine the public Corning/Amphenol IPR records for prior art (Matthews, Tatsuzuki, Youtsey, Lionetto, Horak, Bence, etc.) that reads on the same "continuity member / nut-body contact" concept.

Pattern signals. (a) Same-petitioner pattern: Corning filed a broad multi-patent campaign against PPC (six-plus IPRs on sibling patents, plus ex parte reexaminations and an inequitable-conduct fight in N.D.N.Y.) and never included the '229 — a strong hint that Corning's accused products/claims mapped better onto the '060/'320/'353 family. (b) Patent-owner appeals: PPC has litigated PTAB appeals aggressively — it won a Federal Circuit vacatur on "reside around" in PPC Broadband v. Corning (815 F.3d 747) and pursued the 2018 nonprecedential appeal. (c) No defensive aggregator: no Unified Patents or similar entity appears in the chain for this patent; the challengers were operating companies (Corning, Amphenol).

Recommended next steps

• If you're a defendant and were told this patent has been invalidated: it hasn't. There is no FWD to link to — no IPR exists on the '229. Any representation that "claims 1–5 have been canceled" would be false for this patent; that claim-cancellation fact pattern belongs to sibling patents in the family. Demand an IPR number before you concede anything.
• Because all claims are untested, an IPR is a live option — but watch the clock. First, confirm the actual claim set and asserted claims from an infringement contention (the '229 has independent apparatus claims directed to a connector body + post + rotatable port coupling element + continuity element, and at least one related method aspect per the specification). Second, budget for a full 1-year trial: PTAB's statutory deadline is one year from institution (35 U.S.C. § 316(a)(11)), extendable to 18 months for good cause; institution decisions are due six months from the petition's filing/accordance date absent joinder.
• Mine the sibling IPR record now. The Corning and Amphenol petitions and expert declarations (e.g., the Mroczkowski and Dickens declarations) contain invalidity theories on the same continuity-member architecture. The Corning art (Matthews + Tatsuzuki, "reside around" = "encircle or surround") is the obvious starting point, plus Bence/Youtsey/Lionetto/Horak for the O-ring/conductive-member angle used against the '083.
• Use the district-court narrowing. The Times Fiber construction of "a connector body attached to a post" as separate, non-integral components interlocked against axial movement (adopted over Times Fiber's integral-reading objection, with the court noting Figure 10's integral embodiment is covered by non-asserted claims) is a genuine, public narrowing you can rely on for non-infringement even without a PTAB outcome. Verify the current docket via USPTO PatentCenter and CourtListener before relying on it.
• If no PTAB activity is the whole answer (it is): the absence is a signal, as you noted — the '229 was asserted for years across multiple defendants and, unlike its siblings, never attracted a petition. Investigate why before assuming it's attack-proof; the likely reason is claim-mapping, not claim strength.

I'll reconstruct the assignment record for US 8337229. Let me start with targeted searches on the assignment records and litigation history.

Let me dig into the specific assignment records, the 2013 litigation, and the corporate history.

Let me pin down the assignment reel/frame records, the correspondent attorney, and the RPX/Unified asserter data.

Assignment & Ownership Analysis — US 8,337,229 B2

"Connector having a nut-body continuity element and method of use thereof"
App. 13/016,114 · filed 2011-01-28 · granted 2012-12-25 · Inventor: Noah Montena

Data-provenance note (read first): The production sources reachable in this session (Google Patents legal events, court/PTAB filings, the Belden 8-K exhibit) reproduce the substance of the USPTO assignment record — conveyance type, assignor, assignee, execution/recording dates — but not reel/frame numbers. I could not open the Assignment Center index directly in this session, so all reel/frame fields below are marked "not retrieved" rather than guessed. Verify at https://assignmentcenter.uspto.gov/ or https://assignment.uspto.gov/patent/index.html (search by patent number 8337229).

Inventors

• Single-inventor patent. Montena is a prolific coaxial-connector engineer whose output was assigned to JMA/PPC as a matter of course (e.g., US 8,529,279; US 8,920,192; US 9,456,661 all list him and trace to the same assignee).
• No unusual-pattern flag. There is no evidence of the inventor departing the original assignee within 12 months of filing; the assignment to JMA was recorded contemporaneously with filing (2011-01-28 legal-event entry) and Montena continued to appear as inventor on PPC-family connectors. The "departing-inventor precedes fire-sale" tell is not present.

Original assignee

John Mezzalingua Associates, Inc. (d/b/a PPC) — East Syracuse, NY. Founded 1940; a manufacturer of coaxial cable connectors and broadband connectivity hardware for the cable-TV/telecom market, not a licensing entity.

• Product embodying the claims: Yes. PPC's own infringement complaints describe the '229 patent as covering "coaxial cable connectors sold by PPC." This is a ship-the-product patent, not a paper asset.
• Current status: The name was changed to PPC Broadband, Inc. (December 2012), and the business was acquired by Belden Inc. on 2012-12-10 (Belden 8-K: "the Company acquired PPC Broadband, Inc., a Delaware corporation, and SKT International Holdings B.V."). PPC Broadband continues to operate as a Belden subsidiary at the same East Syracuse address.
• Founder/CEO context: John Mezzalingua ran PPC as CEO for ~12 years and sold the cable-TV business in 2012; he later founded JMA Wireless (2012). That is a founder exit via sale to a strategic acquirer, not a distress event.

Assignment timeline

Recorded events as surfaced by the Google Patents legal-events mirror of the USPTO assignment record (reel/frame not retrievable this session):

1. 2011-01-28 (executed) / recorded 2011-01-28 — Reel not retrieved

   • Conveyance: Assignment of Assignors' Interest
   • Assignor: MONTENA, NOAH
   • Assignee: JOHN MEZZALINGUA ASSOCIATES, INC.
   • Correspondent: not retrieved (prosecution firm of record is Schmeiser, Olsen & Watts, LLP, per the patent's attorney field — a distinct role from the assignment-record correspondent)
   • Context: Routine inventor-to-employer assignment, executed on the filing date.

2. 2013-02-12 (recorded) — Reel not retrieved

   • Conveyance: Change of Name (no transfer of title)
   • Assignor: JOHN MEZZALINGUA ASSOCIATES, INC.
   • Assignee: MR ADVISERS LIMITED
   • Correspondent: not retrieved for the patent reel. The adjacent trademark recording for the same corporate renaming (Trademark Assignment 4936/879, Change of Name, executed 2012-09-12, recorded 2013-01-07) names correspondent Elizabeth A. Cominolli, Hiscock & Barclay, LLP, 300 South State Street, Syracuse, NY 13202. Hiscock & Barclay (now Barclay Damon) was PPC's long-time IP/patent counsel of record in the parallel IPRs (Denis J. Sullivan). Single-appearance firm doing operating-company work — not an NPE tell.
   • Context: Internal corporate renaming incident to the Belden acquisition — not a transfer to a licensing vehicle.

3. 2013-02-13 (recorded) — Reel not retrieved

   • Conveyance: Change of Name (no transfer of title)
   • Assignor: MR ADVISERS LIMITED
   • Assignee: PPC BROADBAND, INC.
   • Correspondent: not retrieved (same Hiscock & Barclay / Cominolli profile as item 2)
   • Context: Second step of the same renaming chain; entity ends as PPC Broadband, Inc., the Belden operating subsidiary.

4. 2013-10-04 (recorded) — Reel not retrieved

   • Conveyance: Security Agreement
   • Assignor: PPC BROADBAND, INC.
   • Assignee: JPMORGAN CHASE BANK, N.A., as administrative agent
   • Correspondent: not retrieved
   • Context: Securitization — patents pledged as collateral for the acquirer's credit facility. Title never leaves PPC.

5. 2013-10-08 (recorded) — Reel not retrieved

   • Conveyance: Confirmatory Grant of Security Interest in US Patents
   • Assignor: PPC BROADBAND, INC.
   • Assignee: WELLS FARGO BANK, NATIONAL ASSOCIATION, as administrative agent
   • Correspondent: not retrieved
   • Context: Securitization — second-lien/confirmatory security grant over the same asset.

6. 2016-10-12 (recorded) — Reel not retrieved

   • Conveyance: Release by Secured Party
   • Assignor: WELLS FARGO BANK, NATIONAL ASSOCIATION
   • Assignee: PPC BROADBAND, INC.
   • Correspondent: not retrieved
   • Context: Release of the security interest; encumbrance cleared, ownership unchanged.

Net effect: title runs Montena → John Mezzalingua Associates, Inc. → (name change) → MR Advisers Limited → (name change) → PPC Broadband, Inc. The only intervening records are lender security interests that were later released. No third-party or NPE owner ever appears.

Timeline diagram

timeline
    title Ownership of US 8337229
    2011 : Filed by John Mezzalingua Associates
         : Inventor Montena assigns to JMA
    2012 : Patent issues Dec 25
         : Belden acquires PPC Broadband
         : Entity renamed Mr Advisers Limited
    2013 : Renamed PPC Broadband Inc
         : Security interest to JPMorgan Chase
         : Confirmatory security to Wells Fargo
         : Times Fiber suit filed
    2016 : Wells Fargo releases security interest

NPE / troll-pattern signals

1. Shell-entity transfer — NOT PRESENT. The "MR ADVISERS LIMITED" link is recorded as a Change of Name (recorded 2013-02-12 and 2013-02-13), i.e., a renaming of the same legal entity, not a sale of the patent to a licensing LLC. The end-state assignee (PPC Broadband, Inc.) is a manufacturer at 6176 East Molloy Road, East Syracuse, NY — a plant address, not a registered-agent mailbox — and its parent (Belden) booked the acquisition in an 8-K. Naming alone was not treated as evidence; the conveyance type and the adjacent corporate/ SEC record contradict the shell hypothesis.

2. Known asserter in the chain — NOT PRESENT. Every assignee (John Mezzalingua Associates, MR Advisers Limited, PPC Broadband, JPMorgan Chase, Wells Fargo) is absent from the public NPE lists cited (Acacia, Marathon, IV, IPNav, Wi-LAN, Mosaid/Conversant, Vringo, Pendrell, Innovatio, MPHJ, Lumen View, Round Rock, Document Generation Corp, Spangenberg entities). The litigant-of-record is the operating manufacturer itself.

3. Repeat correspondent across the chain — UNCLEAR / WEAK. The only correspondent name I could substantiate is Elizabeth A. Cominolli of Hiscock & Barclay, LLP (Trademark Assignment 4936/879, the Change of Name for the same corporate renaming, recorded 2013-01-07); Hiscock & Barclay (Denis J. Sullivan) also held the patent-owner side in the Corning Gilbert IPRs. That is a single law firm performing normal operating-company prosecution and corporate-housekeeping work — the opposite of the "changing shell LLCs, constant lawyer" pattern. Patent-reel correspondents were not confirmed, so this is marked unclear rather than present.

4. Cascading transfers — NOT PRESENT. Only two consecutive recordings within ~24 months exist (the two name changes, one day apart), and both are renamings of one entity, not chained transfers among separate LLCs. No shared registered-agent address, no common-principal shell stack.

5. Pre-litigation transfer — NOT PRESENT (as an NPE tell). The renaming recordings (Feb 2013) do fall within ~6 months of the first suit naming this patent (5:13-cv-00460, PPC Broadband v. Times Fiber Communications, N.D.N.Y., filed 2013). However, the assignee asserting the patent is the operating entity that made the product, and the court record confirms it: "The '229 Patent was assigned to PPC. PPC is the sole owner of, and has the sole right to sue upon, the '229 Patent." A name change recorded before suit is corporate housekeeping, not chain-arranging for a shell assertion.

6. Bankruptcy fire-sale — NOT PRESENT. No Chapter 7/11 of the assignor appears anywhere in the record; the triggering event was a strategic acquisition by Belden, not insolvency.

7. Privateering — NOT PRESENT. Assertion here is by PPC Broadband itself against actual competitors (Times Fiber Communications, Corning Gilbert / Corning Optical Communications RF). No operating company transferred the patent to a separate NPE to assert on its behalf; the SEC 8-K shows Belden bought the operating company, and the operating company kept litigating its own patents.

8. Defensive aggregator (anti-NPE) — NOT PRESENT. The chain terminates at PPC Broadband, Inc. (Belden subsidiary), an operating manufacturer; the patent was never acquired by RPX, AST, LOT, Unified, or OIN and is not neutralized.

Verdict

Operating-company assertion.

The title chain runs Montena → John Mezzalingua Associates, Inc. → (Change of Name, recorded 2013-02-12) → MR Advisers Limited → (Change of Name, recorded 2013-02-13) → PPC Broadband, Inc., with only lender security interests (JPMorgan, recorded 2013-10-04; Wells Fargo, recorded 2013-10-08) that were released (2016-10-12) in between. Every owner is the same operating connector manufacturer, the patent issued from PPC's own product development, and PPC Broadband (as sole owner, per its 5:13-cv-00460 complaint against Times Fiber Communications) asserted it against competitors — so none of the eight NPE signals is present. Confidence caveat: reel/frame numbers were not retrievable in this session; the conveyance types and parties above are drawn from the assignment-record mirror and should be confirmed reel-by-reel at https://assignmentcenter.uspto.gov/.

Sources: Google Patents legal events, US 8,337,229 (https://patents.google.com/patent/US8337229/en); PPC Broadband v. Times Fiber Communications, 5:13-cv-00460-TJM-DEP (N.D.N.Y.), via RPX Insight and GovInfo; Belden Inc. Form 8-K / Exhibit 99.1–99.3 (Feb 25, 2013) re December 10, 2012 acquisition of PPC Broadband, Inc.; USPTO Trademark Assignment 4936/879 (Change of Name, correspondent Elizabeth A. Cominolli, Hiscock & Barclay LLP); PTAB mandatory notices in IPR2013-00343 citing PPC Broadband, Inc., 6176 East Molloy Road, East Syracuse NY.

I'll research the prior-art citations of US 8,337,229 directly. Let me pull the patent's citation records and related data.

I have partial data. Let me pin down the authoritative front-page reference list and the claims of the '229, plus the litigation invalidity contentions against it.

Let me pin down the '229's own cited-reference list and the litigation prior-art record.

Prior Art Analysis — U.S. Patent No. 8,337,229 B2

"Connector having a nut-body continuity element and method of use thereof"
Inventor: Noah Montena | Applicant: John Mezzalingua Associates, Inc. (now PPC Broadband, Inc.)
App. No. 13/016,114 filed Jan. 28, 2011 | Published as US 2012/0122329 A1 (May 17, 2012) | Granted Dec. 25, 2012
Priority: U.S. Provisional 61/412,611 filed Nov. 11, 2010
Source: https://patents.google.com/patent/US8337229/en

0. Two up-front integrity flags (read before the tables)

(1) I could not retrieve the '229's complete verbatim "(56) References Cited" list within this session, so I have not invented it. The '229 sits in the Mezzalingua/PPC "continuity connector" family, whose members in this period carried an unusually long shared front-page reference list — hundreds of U.S. Patent Documents running from 19th-century patents (e.g., US 331,169, Nov. 1885, Thomas; US 1,371,742, Mar. 1921, Dringman) up through 2011–2012 publications, plus German/French/British/Japanese/Korean/Taiwanese foreign documents and the PPC file-wrapper boilerplate. I verified this pattern on the sibling/continuation US 8,529,279 ("continuation application claims the priority benefit of U.S. Non-Provisional patent application No. 13/016,114" — i.e., of the '229 itself) at https://uspto.report/patent/grant/[8529279](/patent/8529279), and on the co-family US 8,287,320 as reproduced in the Corning IPR record (IPR2013-00345, Ex. 1009). The overwhelming majority of those entries are generic coaxial-connector background and have zero § 102 relevance to the '229's claims. What follows is therefore (a) the citations I could verify as tied directly to the '229's own documentary chain, and (b) a curated set of the genuinely probative references, each labeled with its verification status.

(2) Contradiction to resolve against the earlier Litigation section. The prior section reports that the Times Fiber Markman construed "radial end face surface extending from the inner surface / inner surface portion" and "axial direction" in the '229. Those terms do not appear in the claim text of the '229 that I recovered (published claims of US 2012/0122329, set out below). Either (i) the granted claims differ from the published application claims (a pre-grant amendment), or (ii) those constructions belong to another asserted patent in that case. Do not rely on those constructions for a § 102/§ 103 analysis until the granted claim set is pulled from PatentCenter — this materially changes what must be disclosed by any anticipating reference.

1. The '229's claim set, as recovered (needed to run § 102 at all)

Independent claims: 1, 13, 18, 26 (and a further method claim 29). From the published application (https://patents.justia.com/patent/20120122329):

Claim-construction input already on the record (from the prior section): in PPC Broadband v. Times Fiber, No. 5:13-cv-00460 (N.D.N.Y.), the court adopted a construction of "a connector body attached to a post" requiring separate, non-integral components "interlocked with one another to prevent axial movement of one relative to the other," expressly rejecting the argument that Figure 10's integral post/body was covered. This narrowing helps non-infringement but does not change § 102 — prior art is still measured against the granted claim text.

Record metadata (verified from the patent): prior-art keywords on the face are connector, continuity, coupling element, connector body, nut; CPC includes H01R 9/0521 ("connection to outer conductor by action of a nut"), H01R 13/655 (earth brace), H01R 13/6581 (shield structure), H01R 24/38.

2. References verified as cited in the '229's immediate documentary chain

These four are the references carried by the international counterpart of the '229, WO 2012/064511 A2 (PCT/US2011/057939, priority Oct. 26, 2011 — same Montena disclosure), whose citation list Google reproduces as "Patent Citations (4)". They are the highest-confidence "cited references" I can tie to this disclosure, and each has a real § 102 hook.

Note on A4: I believe this publication issued as US 8,313,353 B2 (Coaxial cable continuity connector), one of the patents Corning challenged in IPR2013-00345 — but I am not asserting that link as verified.

3. Second tier — same-subject-matter references that appear in the family's cited lists and are § 102-relevant

These appear in the front-page reference lists of the PPC/Mezzalingua siblings in this same family (verified in the US 8,287,320 list in IPR2013-00345 Ex. 1009, and the lists of US 9,017,101 / US 9,590,287 / US 8,529,279). Verify presence on the '229's own (56) list before citing them as "cited" by the '229.

4. Background/boilerplate citations — no § 102 relevance

The bulk of the family's (56) list (e.g., US 331,169 (Nov. 1885, Thomas); US 1,371,742 (Mar. 1921); US 1,667,485 (Apr. 1928); US 2,102,495 (Dec. 1937, England); and the long run of 1960s–1990s F-connector patents such as US 4,400,050 (Aug. 1983, Hayward), US 4,593,964 (Jun. 1986, Forney), US 4,813,887 (Mar. 1989, Amp), US 5,141,451 (Aug. 1992, Down), US 5,499,934 (Mar. 1996, Jacobsen), plus DE 47931 C (Oct. 1888), FR 589,697 (Jun. 1947), GB 589,697 (Jun. 1947) et al.) is conventional coaxial-connector art. None of these disclose a continuity element positioned between a rotatable port coupling element and the connector body proximate the body's second end, so I map no claim to them under § 102. They are relevant only as evidence of the ordinary skill level and of the long-known nut/post/body architecture (relevant to § 103 motivation-to-combine).

Non-patent literature on the family record: the ARRIS "Digicon AVL Connector" web page (ARRIS Group Inc., 3 pp., retrieved Apr. 22, 2010), cited by the applicant. This is a printed publication as of the retrieval/accessibility date; it is a § 102(a)/(b) watch item for a connector with a grounding/continuity insert, and predates the Nov. 11, 2010 priority date. Verify its content — the citation itself proves only that PPC considered it.

5. What the sibling PTAB record adds (unverified as to the '229's face)

Even though the '229 was never challenged at the PTAB (per the prior PTAB section — zero IPR/PGR/CBM), the Corning/Amphenol petitions against the siblings give you the best-developed invalidity theories on the same continuity-member architecture:

• Corning Optical Communications RF, LLC v. PPC Broadband, Inc. — IPR2013-00340, -00342, -00343, -00345, -00346, -00347 (targets: US 8,232,060; 8,323,060; 8,313,353; 8,287,320). The Matthews reference (A1/B4 above) was the workhorse. Federal Circuit: PPC Broadband, Inc. v. Corning Optical Communications RF, LLC, 815 F.3d 747 (Fed. Cir. 2016) — "reside around" construed as "encircle or surround," vacated and remanded; further nonprecedential appeal at Fed. Cir. No. 17-1362 (2018-07-03).
• Amphenol Corp. v. PPC Broadband, Inc. — IPR2022-00718/-00719/-00720/-00721 (targets US 9,225,083; 10,038,284) — art on O-ring / conductive-seal continuity members (Bence-type and comparable disclosures).

These petitions and expert declarations are a ready-made template for the '229's claims 1, 13, 16, 17, 18 and 26, provided you re-anchor the "connector body" and "second end" limitations to the granted claim text.

6. Bottom line on § 102 — and the honest limits of the above

1. No reference I could verify discloses every limitation of independent claim 1. The '229's novelty is positional: a continuity element between the port coupling element and the connector body, proximate the body's second (rear) end. Matthews (A1), Purdy (A2) and Bence (B1–B3) all place their conductive member at the front / port-mating-edge interface (nut ↔ post). That is why I classify them as § 103 primary references for claim 1, and as § 102 candidates only for the narrower/location-agnostic claims (2, 3, 13, 14, 16, 17, 21) — and even then only where the annular-recess and radial-direction limitations (claim 13/14/17) are actually met.
2. The strongest § 102 posture against the '229 runs through PPC's own earlier filings (A4 = US 2010/0255719 A1, filed Apr. 2, 2009; B7) as § 102(a)/§ 102(e) art. Mind the trap: because these are commonly owned, pre-AIA § 103(c) removes them from § 103 — a challenger must use them for anticipation, not obviousness.
3. The '229 is pre-AIA. Filed Jan. 28, 2011 (before Mar. 16, 2013), so the operative provisions are pre-AIA § 102(a), (b), (e), (g) and § 103(a) — not AIA § 102(a)(1)/(a)(2). (Consistent with the prior section's note that the '229 is PGR-ineligible.)
4. Everything in § 3 and the ARRIS NPL is subject to a verification flag. I verified those citations on sibling patents in the same family, not on the '229's own (56) list. Treat them as leads.

7. Recommended verification steps (do these before filing or relying on anything above)

1. Pull the granted claim set and the face of US 8,337,229 from USPTO PatentCenter (App. 13/016,114) — this resolves the § 0 flag about "radial end face surface" / the possibility of a pre-grant amendment.
2. Pull the complete "(56) References Cited" and every IDS/892 from the file wrapper so the citation inventory is the patent's own, not the family's shared boilerplate.
3. Order the Times Fiber invalidity contentions — the record identifies Defendant's Disclosure of Preliminary Invalidity Contentions, served Oct. 31, 2013, PPC Broadband, Inc. d/b/a PPC v. Times Fiber Communications, Inc., No. 5:13-CV-0460-TJM-DEP, 48 pages (cited as "LIT10" on the face of PPC's related US 9,225,083). That document is the single most efficient source of the real § 102/§ 103 theory against the '229.
4. Check each of A1–A4 and B1–B8 against the granted claim text for the two gating limitations: (i) continuity element between the port coupling element and the connector body (not merely nut-to-post), and (ii) location proximate the second end / contacting the body's outer annular recess.
5. Mine Corning's IPR2013 petitions and exhibits (Ex. 1009 = US 8,287,320 with its full citation list) — public, free, and built for exactly this feature set.

I'll ground this analysis in actual prior-art references. Note up front: the "Prior Art section of this page" was not included in the material provided to me — no prior-art citation list accompanies the patent text or the four generated sections. I'll flag that and reconstruct the most defensible art set from the family's public IPR records, with sources.

Let me pull the '229 patent's own front-page References Cited and the key sibling-IPR references.

Let me pin down the specific reference identities (Tatsuzuki, Matthews, Youtsey) and the '229's own cited-art list.

Obviousness Analysis — U.S. Patent No. 8,337,229 under 35 U.S.C. § 103

0. Two threshold caveats (read before the analysis)

(a) The "Prior Art section of this page" was not provided. The material I was given — the full Google Patents text of US 8,337,229 and the four previously generated sections (Patent summary, Litigation summary, PTAB challenges, Strategic summary) — contains no prior-art citation list. The Google Patents fetch of the patent does not include its front-page "References Cited" block. Accordingly, I have reconstructed the art set below from (i) PPC family front-page reference lists that surfaced in search, and (ii) the prior art actually litigated in the sibling PPC continuity-patent IPRs. If a formal prior-art section exists elsewhere in your workflow, this analysis should be reconciled against it before it is relied on.

(b) The literal claim text of the '229 was never retrieved (as the Patent Summary section already flagged). Obviousness is claim-by-claim, and without the claims I cannot give you a limitation-by-limitation § 103 chart keyed to actual claim language. What follows is keyed to the patent's own five "general aspects" (the Summary-section formulations), which is a proxy, not the claim set.

One more literal-interpretation note: the reference lists reproduced below contain two apparent transposition artifacts that I am not auto-correcting per my operating rules — "Matthews," US 2006/0101977 A1, is rendered as "2006/0110977 A1" in one list; and "Youtsey" appears as "Youney" in the US 9,178,290 face list (6,712,631 B1 3/2004 Youney). Treat those as unresolved and verify against the source documents.

1. Governing law and the person of ordinary skill

The '229 has an effective priority date of November 11, 2010 (provisional 61/412,611) and was filed January 28, 2011 — so pre-AIA § 103(a) controls. The pre-AIA § 102(b) critical date is November 11, 2009; any patent or printed publication before that date is unqualifiedly available for § 103, and pre-AIA § 103(c) common-ownership disqualification cannot remove § 102(b) art. That distinction matters here because a large share of the closest art is PPC's own.

POSITA (adapted from the Corning/Amphenol records): a person with a bachelor's degree in mechanical or electrical engineering and 2–4 years of experience designing coaxial cable connectors, or equivalent experience, familiar with F-type connector mechanics, grounding/continuity requirements, and EMI/RFI shielding practice. The '229 is classified in H01R 9/05, H01R 9/0521 ("connection to outer conductor by action of a nut"), H01R 13/655 ("earth brace"), H01R 13/6581, H01R 13/622, H01R 4/48 — the analogous field is broad and mechanical.

2. The prior-art set

Explicitly NOT available as § 103 art: US 8,167,636 (Montena, filed Oct. 15, 2010), and the '060/'353/'320 (Purdy/Montena) patents. These are the same inventive entity and/or commonly owned and were filed on or after — not before — the '229's critical date; they are not prior art to the '229 for § 103 purposes. (Corning's IPR Exhibit 1031, which is a copy of US 8,323,060, is likewise not a prior-art reference.) Do not build a '229 obviousness theory on PPC's own continuity-member patents.

3. Combination grounds

Ground A — Youtsey + Lionetto and/or Horak (strongest; covers Aspects 1, 3, 4, 5)

This is the combination with the best evidentiary pedigree, because the Amphenol Final Written Decision already adopted it against a closely related PPC claim:

"Youtsey's o-ring 84 is disposed between and contacts Youtsey's nut 30 and Youtsey's body 14, and Petitioner has articulated a reason with a rational basis for modifying Youtsey's o-ring 84 to be conductive based on the disclosures of Lionetto and Horak without hindsight bias."
— Amphenol FWD excerpts (ptacts.uspto.gov)

The Board further found the POSITA "would have been motivated to add a second (redundant) grounding path… from outer conductor 24, to body member 14, to o-ring 84, to nut member 30" (same source), and expressly invoked KSR, 550 U.S. at 420–21 ("a person of ordinary skill is also a person of ordinary creativity, not an automaton").

Mapping:

Motivation: (i) the "loose connector" problem was well known and expressly acknowledged — Youtsey itself complains that crimping "leaves channels for the infiltration of moisture" (Youtsey 1:16–22; 2:14–16) and Tatsuzuki's abstract states its purpose is maintaining outer-conductor connection when the nut is loose; (ii) the '229's own specification supplies the same motivation — it says the foil-layer diameter is "unpredictable," so post-to-foil contact "may not be sufficient," which is exactly why a redundant nut-to-body path is desirable; (iii) Lionetto and Horak establish that conductive O-ring/gasket technology was a known technique with a reasonable expectation of success ("predictable result of sealing against both moisture and RFI at the same time" — Amphenol record).

Ground B — Matthews + Tatsuzuki (covers Aspects 1, 2, 5; the Corning ground)

Corning's IPR2013-00340 petition combined Matthews (two-piece post + connector body) with Tatsuzuki's disc-shaped spring 13, and claimed that the modified connector "would maintain electrical continuity from the interface port to the coaxial cable" (petition, ptacts.uspto.gov).

Why Matthews + Tatsuzuki is the coherent pairing for the '229 specifically: the N.D.N.Y. Times Fiber construction of "a connector body attached to a post" requires "a post and connector body, which are separate components… that are interlocked with one another" (GovInfo, 5:13-cv-00460). Tatsuzuki's spring sits between an outer contact and a rotary nut on what the Corning record describes as a "unitary body and post." So Tatsuzuki alone does not meet the two-piece body/post element — Matthews supplies it. This is a classic KSR "fit the teachings together like pieces of a puzzle" combination, and the two references are from the same field and address the same art.

For Aspect 2 (continuity element with a first surface axially separated from a second surface; nut internal lip; body outer annular recess): Tatsuzuki's spring pieces 13b are explicitly "configured to arch away from a plane of the disc-like portion 13a" — Corning mapped exactly this to arch/axial-separation limitations — and the spring is accommodated in spring storage groove 11e, which supplies the recess.

Ground C — Tatsuzuki's nut–body contact standing alone

The Federal Circuit in PPC Broadband, Inc. v. Iancu recorded testimony that Tatsuzuki teaches "constant contact between the nut and the body" (CourtListener; CCH copy of the 2017-07-03 opinion).

That admission is devastating for the '229 and harmless for the '060/'353/'320. The Corning IPRs lost because those claims required continuity through the post — and the Board could never adequately justify press-fitting Tatsuzuki's "accommodated" spring onto the post. But '229 Aspect 1 requires continuity between the port coupling element (nut) and the connector body — not through the post. So the very weakness that defeated Corning's invalidity case against the siblings is the exact feature Tatsuzuki was conceded to disclose. A defendant asserting § 103 against the '229 should build the theory around nut↔body continuity, not post continuity.

Ground D — Routine design variations (dependent-claim-style scope)

Even crediting the '229's narrower recitations, they are ordinary design choices under KSR Part II and In re Harza-type reasoning:

• Crescent / semi-circle / C-shape / half-moon element (spec: element "need not be radially disposed 360°") — a conductive ring with a gap is a well-known expedient (see also the Youtsey washer family, US 2012/0045933, describing semicircular/gapped washers).
• Wave washer / bent washer cross-section — the '229 says so itself ("similar to a metal washer or wave washer," "conductive wave ring").
• Elliptical ring with major/minor radii (r₁ > r₂) for the radial embodiment (Aspect 4 / FIGS. 13–16) — this is just a compliant oval spring, the result of applying known spring-force engineering to a radial gap.
• More than one continuity element (FIG. 11) — duplication of a known element for redundancy, which the Amphenol FWD expressly held the POSITA would do ("add a second (redundant) grounding path").
• Conductive polymer / conductive elastomer / soft metal material selection — the '229's own list is a recitation of the materials Lionetto, Horak, and Youtsey's O-rings already use; "determining a workable material for the o-rings was a matter of routine experimentation" (Amphenol record).

Ground E — Method aspect (Aspect 5) and the § 112(f) aspect (Aspect 3)

Aspect 5 is the assembly counterpart of Grounds A–C; where the apparatus is obvious, the method of positioning the same member is obvious (In re Kuehl line of reasoning; the Amphenol FWD treated the method/structure together). Aspect 3 is a means-plus-function recitation whose disclosed structures are the same rings/washers/elastomers; a means claim is no broader than the corresponding structure and equivalents, so if the apparatus aspects fall, Aspect 3 falls with them.

4. The patent owner's best counterarguments (and how they fare)

1. "Tatsuzuki teaches away / its spring is only 'accommodated' and must not be crushed flat." PPC won this argument in PPC v. Iancu — the Federal Circuit vacated the Board's "maintain electrical continuity" findings on post contact, holding the Board failed to point to concrete record evidence for the "press-fit" theory (CourtListener). This argument does not transfer to '229 insofar as '229 requires only nut↔body continuity.
2. Secondary considerations. PPC litigated commercial success (the "Ultra" connector family), copying, long-felt-but-unsolved need, and failed attempts by others in the Corning IPRs (PO Response §V.B). These are real, record-supported Graham factors and must be weighed. A defendant should expect them.
3. "No single reference teaches the coupler–body grounding member." Rejected in the Amphenol FWD: "obviousness cannot be rebutted by attacking the references individually rather than their combined teachings."
4. Claim-construction narrowing. The Times Fiber construction requiring separate, non-integral body and post narrows the '229 — but it cuts against patentability, because it removes the FIG. 10 integral embodiment from the claims and sharpens the Matthews+Tatsuzuki combination rather than defeating it.
5. Evidentiary burden. PPC v. Iancu is a standing warning that the Board "cannot simply reach conclusions based on its own understanding or experience — or on its assessment of what would be basic knowledge or common sense" (In re Zurko, 258 F.3d 1379, 1386). Any '229 petition must be anchored in declaration testimony and documentary evidence, not "common sense" assertions.

5. What I do not know / where this analysis could be wrong

• The actual claims of the '229 are unverified. If, e.g., the '229's independent claim recites a limitation not present in the Summary formulations (such as the "radial end face surface extending from the inner surface" language construed in the Times Fiber Markman — which does not appear in the '229 specification text I have), the mapping above could be incomplete or misdirected. Confirm the claim set first.
• Youtsey and Horak identifiers are unverified here. I have their disclosures from the Amphenol/IPR excerpts but not confirmed patent numbers. Do not cite a number for either without checking.
• Matthews's publication number is inconsistent across two face lists (2006/0101977 vs. 2006/0110977). Verify.
• The '229's own front-page References Cited was not retrieved, so a reference the examiner actually cited — possibly closer than anything above — may exist. Pull the patent PDF from Patent Public Search before finalizing.
• No 2026 activity on the '229 itself exists for me to reflect (consistent with the PTAB section: zero AIA proceedings on this patent).

6. Bottom line

The '229 is highly vulnerable to a § 103 attack, and — critically — for a reason opposite to its siblings. The '060/'353/'320 claims were saved because they required a continuity path through the post, and Tatsuzuki's spring was never shown to maintain contact with the post. The '229's principal aspects require only that the continuity element bridge the nut and the connector body — a limitation that Tatsuzuki was conceded at deposition to teach, and that Youtsey's O-ring 84 + Lionetto/Horak's conductive-elastomer teachings disclose and make obvious in the same radial body-to-nut position. The strongest single ground is Youtsey + Lionetto and/or Horak, precisely because a PTAB panel already adopted it with a reasoned motivation ("redundant grounding path," loose-connector problem, known conductive-O-ring technique) against a neighbouring PPC patent. Matthews + Tatsuzuki is the best ground for the lip/recess/axially-separated-surface limitations. Neither ground, however, can be asserted without the literal claims — get those first.