Comcast Cable Communications, LLC v. Realtime Adaptive Streaming LLC

I'll research this case across PTAB records and the underlying district court litigation.

Let me dig into the underlying district court case and the PTAB outcomes.

Now let me pin down the PTAB docket specifics and the district court outcome.

I'll research this case. Note up front: the metadata identifies IPR2019-01280 (a PTAB proceeding, not a district court case), so I'll cover both the IPR itself and the parallel district court litigation between these parties — since the litigation-focused items you requested (complaint, Markman, trial) live in the district court case, not the IPR.

The IPR was a joinder petition into Netflix's IPR2019-00209. Let me dig into the parallel district court case and the appeal.

Now let me find the district court docket outcome and the related Delaware/Netflix rulings.

Preliminary note on the record

The case in your metadata — IPR2019-01280 — is not an infringement action. It is an inter partes review before the PTAB, and a narrow one: a "me-too" petition filed with a motion for joinder into Netflix's earlier IPR2019-00209, which Comcast essentially rode as an understudy. There was never a complaint, answer, Markman hearing, trial, or verdict in IPR2019-01280. Those events, to the extent they occurred at all, occurred in the parallel district court case, Realtime Adaptive Streaming LLC v. [Comcast Cable Communications, LLC d/b/a Xfinity](/litigations/by-defendant/Comcast%20Cable%20Communications%2C%20LLC%20d%2Fb%2Fa%20Xfinity), No. 1:18-cv-01446-PAB-STV (D. Colo.). I cover both below and flag where I could not verify the district court docket.

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I. The IPR itself (the case in the metadata)

Grounds and claims challenged. The petition attacked claims 1, 4, 8, 10, 11, 13, 14, 16, 17, 19, 21, 23, 24, 26, 27, 29–32, 34 and 35 of the '046 patent on two obviousness grounds: (1) Imai (JP H11-331305 / U.S. 6,507,611) in view of Couwenhoven (U.S. 5,596,602); and (2) Imai + Couwenhoven + Ishii (U.S. 5,675,789) against claim 24. Expert was Dr. James A. Storer. (Petition)

Claim construction (PTAB, BRI stage). Because this was a joinder, the only constructions of consequence are those the Board adopted in the instituted Netflix proceeding: the dispute over "tracking a number of pending requests for data transmission" (claim 1) — Comcast/Netflix argued Couwenhoven's rate-buffer units were "requests for data transmission"; Realtime argued buffer units and transmission requests are distinct concepts — plus "asymmetric/asymmetrical algorithm" and "access profile." That limitation, carried through the Netflix record, is what ultimately decided the case.

Discovery of strategic significance. The operative discovery was the deposition of Realtime's expert Dr. Kenneth A. Zeger (2020-05-28 in the Google track; his declaration was the centerpiece of Realtime's rebuttal across all '046 proceedings) and the Storer declaration. Comcast, as a joined petitioner, conducted no independent discovery — the joinder constrained it to the Netflix record.

"Trial," outcome, and appeal. Oral argument was held in IPR2019-00209 (Feb. 2020, with Realtime's demonstratives served 2020-02-06). The Board's Final Written Decision of 2020-05-26 determined that no challenged claims were unpatentable — petitioner failed to show Couwenhoven (and Kiel, in the Google track) taught tracking pending data transmission requests rather than generic processor tasks. Comcast appealed; the Federal Circuit affirmed without opinion under Fed. Cir. R. 36 on 2022-06-15, No. 2020-2281 (Lourie, Prost, Taranto), with the PTO intervening. (Rule 36 judgment) Because it was a Rule 36 disposition, no precedential claim-construction or § 103 law emerged from this proceeding.

Net effect: the '046 patent survived intact. Comcast obtained no invalidity judgment, no estoppel against Realtime, and no leverage from the IPR.

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II. The parallel district court action

Filing (2018-06-11). Realtime sued Comcast (and Comcast Cable Communications, LLC d/b/a Xfinity) in D. Colo., No. 1:18-cv-01446-PAB-STV, before Chief Judge Philip A. Brimmer and Magistrate Judge Scott T. Varholak. Comcast was sued roughly a month after Google (C.D. Cal., 2018-04-30) and about seven months after Netflix (D. Del., 2017-11-21). The '046 patent was one of a family of Fallon patents Realtime asserted across a campaign of 15+ suits (against Apple, Sony, Samsung, Amazon, DISH, Cisco, Hulu, Brightcove, Haivision, Polycom, Intel, AMD, Broadcom, Avaya, Mitel, Charter, Cox, Wowza, Google, LG). In the Comcast complaint the accused technology was H.264 video compression in Comcast's HD video/Xfinity products and services.

Answer/counterclaims, motions practice, Markman, trial. I was unable to verify a reliable docket-level record for 1:18-cv-01446 (no accessible PACER/opinion source surfaced in my searches), so I will not characterize the answer, counterclaims, transfer/stay motions, Markman outcome, summary judgment, or any trial date. What the record does establish is that Comcast elected to join Netflix's IPR on the '046 patent rather than litigate validity on a standalone petition, and that Google's later petition (IPR2019-01033) was denied institution partly because Google "could and should have joined the earlier Netflix IPR" as Comcast did in IPR2019-01280 — the PTAB expressly cited Comcast's joinder as the model. That is the clearest documented interaction between IPR2019-01280 and the litigation: the IPR was a litigation-defense cost measure, not a validity campaign.

Disposition. The district court case is not reflected in any public source I could reach as having gone to judgment or trial; Realtime's campaign against the streaming/cable defendants wound down after the '046 IPRs failed and after adverse § 101 and IPR rulings on sibling patents. I cannot state the dismissal or settlement date for the Comcast case with confidence, and I'd flag that as an open item for a PACER pull of the D. Colo. docket.

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III. Parallel PTAB proceedings on the '046 patent

I'll start by verifying the four known articles and searching for additional coverage.

Now let me verify each IPWatchdog article and search for other coverage angles.

Let me check whether these roundups actually mention Realtime/Comcast, and look for case-specific coverage elsewhere.

Sources

• Patent Filings Roundup: NPE District Court Filings Skyrocket, Target Automotive Industry; Another Fortress/Uniloc IPR Denied Under Director’s Discretion Due to Pending Trial - Patent Filings Roundup: NPE District Court Filings Skyrocket, Target Automotive Industry; Another Fortress/Uniloc IPR Denied Und...
• JENKS IP LAW PLLC William Jenks (SBN 212,609) 1629 K St NW, Suite 300 Washington DC 20016 Telephone: (202) 412- 7964
• Defendants characterized that argument as “pure speculation” and “irrelevant
• | Automotive | 120% | 50 | 110 |
• IPR2019-01280 - Comcast Cable Communications LLC v. Realtime Adaptive Streaming LLC IPR of US7386046B2 | RPX Insight
• 20-2281 - Comcast Cable Communications, LLC v. Realtime Adaptive Streaming LLC | RPX Insight
• Comcast Cable Communications, LLC et al. v. Fallon et al - IPR2019-01280
• Comcast Cable Communications, LLC v. Realtime Adaptive Streaming LLC
• Second, instituting Google's Petition would be inefficient because of the far- advanced district court litigation between the sa...
• separate litigations against other defendants across the country: Realtime Adaptive Streaming LLC v
• IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
• UNITED STATES PATENT AND TRADEMARK OFFICE

I'll research the counsel of record on both tracks — the IPR itself (where Comcast is petitioner and Realtime is patent owner) and the parallel D. Colo. infringement action (where Realtime is the plaintiff).

Now let me confirm the petitioner's mandatory notices in IPR2019-01280 itself, and hunt the D. Colo. docket for plaintiff-side counsel.

Threshold correction on the question

The question asks for counsel for the plaintiff. IPR2019-01280 has no plaintiff — it is a PTAB inter partes review, where the parties are styled Petitioner (Comcast) and Patent Owner (Realtime). There is no complaint, no answer, and no "plaintiff's counsel" in the PTAB docket. (Consistent with the earlier sections: the infringement action live in the district court, not in this IPR.)

So I give you counsel in both fora, keyed to the party occupying the plaintiff-side/claim-asserting role in each:

• IPR2019-01280 (and joined IPR2019-00209): Comcast is the petitioner — the party that initiated the proceeding. Its counsel of record are below.
• D. Colo. No. 1:18-cv-01446-PAB-STV: Realtime is the plaintiff; its counsel of record are below, to the extent verifiable.

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I. Petitioner's counsel of record — Comcast (IPR2019-01280)

Comcast's counsel of record were designated in its mandatory notices and power of attorney, and are confirmed by the Federal Circuit's caption in the appeal (No. 2020-2281), which arose from Nos. IPR2019-00209 and IPR2019-01280:

Sources: Federal Circuit Rule 36 judgment, Comcast Cable Commc'ns, LLC v. Realtime Adaptive Streaming LLC, No. 2020-2281 (Fed. Cir. June 15, 2022) ("JAMES L. DAY, JR., Farella Braun & Martel LLP, San Francisco, CA, argued for appellant. Also represented by DANIEL C. CALLAWAY, SUSHILA CHANANA") — PDF; Comcast power of attorney in CBM2018-00033 naming Day as lead and Callaway as backup (docketalarm). IPverse's counsel field for IPR2019-01280 lists only "James Day" as petitioner counsel (ipverse).

Caveat on completeness (important). Because IPR2019-01280 was a me-too joinder into Netflix's IPR2019-00209, the "counsel of record" who actually did the work in the joined proceeding were largely Netflix's counsel on the shared record. I could not retrieve the four corners of the IPR2019-01280 petition's own § 42.8(b)(3) mandatory-notice page in these searches, so the list above rests on the Federal Circuit caption plus Comcast's POA practice in companion matters rather than a direct pull of that document. A PTAB E2E / PTABIS pull of the 2019-06-27 petition would confirm whether any additional Farella or in-house attorney (e.g., a Comcast legal-department registered practitioner) was designated.

Netflix's counsel in the parent IPR2019-00209 (the real driver of the shared record), from Realtime's January 31, 2020 service list: Harper Batts and Chris Ponder — service e-mails at sheppardmullin.com (Sheppard, Mullin, Richter & Hampton). Note the transition: in Realtime-related PTAB filings from August 2018 (IPR2018-01187), Batts and Ponder were at Baker Botts L.L.P., Palo Alto (mandatory notices); by the 2020 filing they appear at Sheppard Mullin. Batts is publicly credited with invalidating 86 claims across seven Realtime patents for Netflix (Sheppard Mullin profile reprint).

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II. Patent Owner's counsel of record — Realtime (the plaintiff-side party)

In IPR2019-00209/01280, Realtime's § 42.8(b)(3) notices (updated Jan. 31, 2020) designated:

Sources: Realtime's Updated Mandatory Notices, IPR2019-00209 (Jan. 31, 2020) — docketalarm PDF; Federal Circuit Rule 36 judgment (Wang argued; "Also represented by C. JAY CHUNG, PAUL ANTHONY KROEGER, REZA MIRZAIE, JAMES S. …" — the last name is truncated in the copy I could retrieve); Realtime POPR in the Google '046 track listing Wang, Chung, and Mirzaie as "Attorneys for Patent Owner" (PTABIS).

One additional appellee-side name to verify: Paul Anthony Kroeger appears on the Federal Circuit appellee appearance grouped with the Russ August & Kabat attorneys. I could not independently confirm his firm affiliation in these searches, so I flag it rather than attribute it.

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III. D. Colo. plaintiff's counsel — Realtime v. Comcast, No. 1:18-cv-01446-PAB-STV

I could not verify a docket-level counsel list for the district court case. No PACER/CourtListener docket sheet surfaced in my searches, and the earlier sections already flagged this as an open item. What the record does support:

• Realtime (plaintiff): Russ August & Kabat is the firm of record for Realtime across this campaign, including the Colorado matters (Wang appears as "plaintiff's lead counsel" in the D. Colo. Sling TV fee record; RAK is the designated PO counsel in every '046 filing). I would expect Wang as lead with Chung/Mirzaie/Rubin/Shum supporting, plus a Colorado local counsel admitted to the D. Colo. bar — whose identity I could not verify and will not guess.
• Comcast (defendant): Farella Braun + Martel was Comcast's engaged counsel in 1:18-cv-01446 — corroborated by a third-party vendor disclosure stating it was "engaged by Farella Braun + Martell LLP for Comcast" in that case (C.D. Cal. filing), which is consistent with Day/Callaway handling the parallel Comcast IPRs.

To close the gap, pull D.I. 1 (complaint signature block) and the appearances-of-counsel entries from the D. Colo. docket via PACER; that will identify Realtime's local counsel and confirm whether RAK attorneys were admitted pro hac vice.

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IV. Related counsel worth noting

• PTO Solicitor (intervenor on appeal): William LaMarca, Thomas W. Krause, Monica Barnes Lateef, Farheena Yasmeen Rasheed — Office of the Solicitor, Alexandria, VA.
• PTAB panel in the '046 proceeding (per RPX): Christa P. Zado, Georgianna W. Braden, Gregg I. Anderson, and others (RPX Insight) — listed as context, not as party counsel.

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What I could not verify (stated explicitly rather than filled in)

1. The IPR2019-01280 petition's own mandatory-notices page (whether counsel beyond Day/Callaway/Chanana were designated for Comcast, including any in-house registered practitioner).
2. Any Comcast in-house attorney of record — none surfaced; I have not named one.
3. Colorado local counsel for Realtime in 1:18-cv-01446.
4. Paul Anthony Kroeger's firm affiliation.
5. Whether the D. Colo. case had pro hac vice admissions beyond the RAK team, or a substitution of counsel before any dismissal/settlement.

I'll research counsel of record. Note a threshold framing issue I need to resolve through searches: IPR2019-01280 is an inter partes review, not an infringement action — so the "defendant" analogue is the patent owner, Realtime Adaptive Streaming LLC (respondent). And because this was a joinder into Netflix's IPR2019-00209, the counsel of record may be Realtime's IPR counsel rather than its district-court counsel. Let me verify both.

Good — I have solid IPR-side data. Now let me pin down the IPR2019-01280-specific filings and the D. Colo. defense-side counsel.

Let me pull the actual IPR2019-01280 docket documents (petitioner mandatory notices/PoA and patent owner PoA) and Comcast's D. Colo. defense team.

Framing correction (flagging a mismatch with the task)

The task asks for "counsel of record representing the defendant(s) in this patent infringement case." IPR2019-01280 has no defendants and no plaintiff — it is an inter partes review. The party opposing the petitioner is the patent owner, Realtime Adaptive Streaming LLC, appearing as respondent under 37 C.F.R. § 42.8(a)(2). The only true "defendant" in a patent infringement sense is Comcast — but in the parallel D. Colo. action, Realtime Adaptive Streaming LLC v. Comcast Cable Communications, LLC d/b/a Xfinity, No. 1:18-cv-01446-PAB-STV. I've organized counsel accordingly, and I flag below where I could not verify the district court docket roster.

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A. Patent owner side in IPR2019-01280 (the "defense" side in this PTAB case)

Realtime was represented by a single, consistent PTAB team across the whole '046 campaign (IPR2019-00209, -01280, and the sibling Realtime IPRs). Comcast's joinder meant Realtime faced essentially one set of counsel of record.

Sourcing: Netflix, Inc.'s Power of Attorney and service list, IPR2019-00209 (filed 2018-11-11) (link); Netflix's Notice of Deposition of Kenneth A. Zeger, Ph.D., IPR2019-00209 (Sept. 6, 2019) (service list with reg. numbers); Realtime's Power of Attorney, IPR2019-01109 (Oct. 3, 2019) (link).

Caveat: I did not retrieve Realtime's own PoA or mandatory notices filed in IPR2019-01280 specifically. The roster above is reconstructed from (i) the contemporaneous Realtime PoAs in the '046-family IPRs, (ii) the service lists in the joined Netflix proceeding (which is the same record, since Comcast rode IPR2019-00209), and (iii) the consolidated Federal Circuit appeal covering both IPR numbers. The composition is highly reliable; the precise IPR2019-01280 filing is the open item.

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B. Petitioner side in IPR2019-01280 — Comcast's counsel

Sourcing: Comcast Cable Communications, LLC v. Realtime Adaptive Streaming LLC, No. 2020-2281 (Fed. Cir. June 15, 2022) (Rule 36) — "JAMES L. DAY, JR., Farella Braun & Martel LLP, San Francisco, CA, argued for appellant. Also represented by DANIEL C. CALLAWAY, SUSHILA CHANANA" (PDF); IPVerse/GreyB PTAB counsel table for IPR2019-01280 listing "Petitioner Counsel — James Day" (link); Comcast's Power of Attorney in CBM2018-00033 (link).

Caveat: The CBM2018-00033 PoA is a different proceeding. I am inferring continuity, not quoting the IPR2019-01280 PoA — which I did not pull. The Federal Circuit caption is direct evidence that Day, Callaway and Chanana were Comcast's counsel of record in IPR2019-01280, since the appeal was taken from both IPR numbers jointly.

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C. The actual infringement defendants (D. Colo. 1:18-cv-01446) — what is and is not verified

The defendants named in Realtime's June 11, 2018 complaint were Comcast Cable Communications, LLC (pleaded as "d/b/a Xfinity") and affiliated Comcast entities. I could not pull the D. Colo. docket sheet, and therefore cannot state the district court roster of record with confidence. Specifically unverified:

• Whether Farella Braun + Martel (the IPR/appellate team) also served as Comcast's district court counsel, or whether Comcast used separate trial counsel with local Colorado counsel.
• Colorado local counsel — no name verified; I am not going to guess a firm.
• Whether in-house counsel entered an appearance.

What I can say with support: Comcast's validity defense on the '046 patent was outsourced to Farella Braun + Martel and executed through joinder into Netflix's IPR2019-00209 rather than through a standalone petition or through district-court invalidity trial practice. The PTAB itself cited Comcast's joinder in IPR2019-01280 as the model for what a later petitioner (Google) "could and should have" done — the clearest documented bridge between this IPR and the litigation.

Also note, to avoid a common misattribution: Baker Botts LLP (Harper Batts, Eliot Williams, Chris Ponder, Jennifer Nall) appears throughout the Realtime IPR record as counsel for Hulu/Amazon/Netflix, not Comcast — and Baker Botts' service lists in IPR2018-01187 list the D. Colo. Comcast case only as a related matter. Harper Batts later moved to Sheppard Mullin and was Netflix's lead in IPR2019-00209. None of these are Comcast's counsel.

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D. Summary table of counsel of record