Realtime Adaptive Streaming LLC v. Charter Communications, Inc. et al.

I'll research this case across multiple sources before writing the overview.

Case Overview

The parties. Realtime Adaptive Streaming LLC is a Texas LLC based in Tyler, Texas, and — in the words of one defendant's own SEC disclosure — "an entity that seeks to license an acquired patent portfolio without itself practicing any of the claims recited therein" (EchoStar Corp. Form 10-K). The Stanford NPE Litigation Database classifies it as "individual-inventor-started," and that is accurate as a lineage matter: the asserted patents name James J. Fallon and Stephen J. McErlain and were assigned out of Realtime Data LLC d/b/a IXO — the long-running Fallon-family compression patent asserter that has litigated since at least Realtime Data v. Packeteer (E.D. Tex. 2008) — to Realtime Adaptive Streaming LLC by assignment recorded at Reel/Frame 041573/0683 (see the face of U.S. Pat. 9,769,477 and the USPTO assignment records). Realtime Adaptive Streaming is thus best characterized as a carve-out assertion vehicle spun from a well-known PAE, not an operating company. The defendants are Charter Communications, Inc. and Spectrum Management Holding Company, LLC f/k/a Time Warner Cable, Inc., both Delaware corporations headquartered in Stamford, Connecticut; the joinder of the legacy TWC entity reflects the 2016 Charter–Time Warner Cable combination. The complaint pleads venue on Charter's regular and established Colorado presence, expressly citing its Denver "Fiddler's Green" campus and Spectrum's Denver job postings (Compl., ECF No. 1, ¶¶ 1–2, 5).

The patents and the accused technology. The June 1, 2018 complaint (56 pages, jury demand) asserts three Fallon-family patents under § 271: U.S. 7,386,046 ("Bandwidth Sensitive Data Compression and Decompression," issued June 10, 2008) — claim 40 recites a compression system with multiple compression routines and a controller that tracks throughput (including pending access requests to a storage device) and switches to a faster/higher-compression routine when throughput falls below a threshold; U.S. 8,934,535 ("Systems and Methods for Video and Audio Data Storage and Distribution," issued Jan. 13, 2015) — representative claim 15 covers determining a parameter of a data block, selecting an asymmetric compressor from a plurality, compressing, and storing; and U.S. 9,769,477 ("Video Data Compression Systems," issued Sept. 19, 2017) — representative claim 1 covers selecting among asymmetric encoders that compress at different rates based on data parameters including measured channel throughput in bits per second. Claim text is quoted verbatim in the parallel Delaware § 101 rulings (Realtime Adaptive Streaming v. Netflix, R&R, D. Del. 1:17-cv-01692, D.I. 48 (Dec. 12, 2018)). The campaign-wide infringement theory was that H.264 (and later H.265) implementations dynamically select among entropy coders/profiles (CAVLC vs. CABAC, baseline/main/high) in response to bitrate or bandwidth, thereby practicing the claimed "select a compression routine based on throughput" architecture; that mapping is set out in detail in the contemporaneous Intel complaint (D. Colo. 1:18-cv-01175). Sourcing caveat: I was unable to verify from the Charter complaint text or a published opinion precisely which Charter instrumentalities (set-top boxes, spectrum streaming apps, head-end transcoders) were accused — the complaint is long and product-agnostic on its face, and I did not obtain the infringement contentions. Treat any specific Charter product identification as unconfirmed.

Procedural posture, venue, and why it matters. Filed in the District of Colorado, Denver Division, as No. 1:18-cv-01345 and initially assigned to Magistrate Judge Kristen L. Mix (scheduling conference set for 10/31/2018; answer date extended by stipulation to 8/17/2018) — later docket aggregators list Magistrate Judge S. Kato Crews as presiding, suggesting reassignment, and the docket carries a magistrate-consent flag. Defendants appeared through Kyle Seedorf and Thomas Duston; Realtime through the Fenster firm (Marc and Eric Fenster), Reza Mirzaei, Philip Wang, and Jay Chung (UniCourt docket; Docket Alarm). The docket is flagged TERMED, but I could not source the terminating entry: UniCourt's last docket refresh is July 16, 2020, which is consistent with termination in mid-2020, and the pattern in sister cases (Brightcove, Sony) was stipulated dismissal — but whether Charter ended by settlement, voluntary dismissal, or otherwise is not confirmed and should not be stated as fact. The case is notable for four reasons. First, it was one of roughly 20 suits Realtime Adaptive Streaming filed in 2017–2018 against Amazon, Cisco, Samsung, LG, DISH/Sling, Hulu, Netflix, Sony, Brightcove, Haivision, Adobe, Apple, Comcast, Cox, Avaya, Broadcom, Intel, AMD, Mitel, Wowza, Google and Charter; Realtime sought MDL centralization in D. Colo., and the JPML refused, citing the need for defendant-by-defendant analysis of individual H.264/H.265 design choices (In re Realtime Adaptive Streaming LLC Patent Litig., 326 F. Supp. 3d 1374 (J.P.M.L. 2018)). Second, Colorado was Realtime's preferred forum — it filed a dozen-plus cases there, and the parallel Sling TV action produced Judge R. Brooke Jackson's § 101 summary judgment of invalidity and a fiercely litigated fee saga (Realtime Adaptive Streaming v. Sling TV, 2021 WL 3888263 (D. Colo. July 31, 2021), aff'd 2023 WL 3373583 (Fed. Cir. May 11, 2023); exceptionality vacated and remanded, Fed. Cir. No. 23-1035 (Aug. 23, 2024)). Third, the patents were under simultaneous PTAB attack — Sling/DISH IPR2018-01331/-01332/-01342, Sony IPR2018-01299, Cisco IPR2018-01384, with ARRIS and others seeking § 315(c) joinder to the instituted Netflix IPR — and the Board's January 10, 2020 final written decision invalidated claims 1–14 of the '535 patent as obvious, which combined with the Delaware § 101 ruling (aff'd, 836 F. App'x 900 (Fed. Cir. 2020)) to gut the campaign's lead patent. Fourth, the litigation is a case study in how the 2018–2020 combination of Alice rulings and IPR invalidations collapsed a coordinated H.264-standard assertion program against MVPDs and device makers — precisely the "industry-standard implementation = infringement" theory the JPML declined to treat as a basis for centralization.

I'll research the docket and related proceedings before writing.

Correction to the earlier section (flagging a contradiction)

The prior overview states that the docket is "flagged TERMED" but that the terminating entry "could not [be] source[d]," and infers from UniCourt's July 16, 2020 refresh date "termination in mid-2020." That inference is wrong. The case terminated on 2018-10-05, four months after filing, by plaintiff's own notice of voluntary dismissal with prejudice. The docket text reads:

"Civil Case Terminated pursuant to the notice of dismissal or stipulation to dismiss filed in this case on 10/5/18. Text Only Entry (nmarb) (Entered: 10/05/2018)"
— Unified Patents litigation portal, D. Colo. 1:18-cv-01345; same entry in UniCourt

The corresponding filing is a "NOTICE of Voluntary Dismissal of Case WITH PREJUDICE by Plaintiff Realtime Adaptive Streaming, LLC (Chung, Jay) (Entered: 10/05/2018)." The July 2020 UniCourt timestamp is merely the last third-party docket scrape, not a termination date. Likewise, the earlier section's inference that Docket Alarm's listing of "Magistrate Judge S. Kato Crews" indicates a reassignment is a metadata artifact — Crews did not take the Denver bench until 2019, well after this case closed; the case was administered throughout by Magistrate Judge Kristen L. Mix.

Consequence for this task: this docket contains no substantive motion practice, no claim construction, no discovery, no trial, and no appeal. The "key legal developments" are almost entirely (a) the pleading-stage record and (b) the parallel PTAB and sister-district proceedings that supplied the law the Charter case never generated.

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Chronology of the Charter docket (all dates confirmed)

Filing and initial pleadings. Complaint filed 2018-06-01 in the Denver Division asserting § 271 infringement of U.S. 7,386,046, 8,934,535 and 9,769,477 against Charter Communications, Inc. and Spectrum Management Holding Company, LLC (the renamed Time Warner Cable entity). Venue was pleaded on Charter's regular and established Colorado presence. Service was effected three days later on both defendants.

Defendants' response — and the gap. Defendants never answered. They obtained two extensions (stipulated to 2018-07-16; unopposed motion to 2018-08-17) and entered appearances through Denver counsel (Seedorf; Duston). No answer, no amended answer, and no counterclaims appear on the docket, and — critically — no Rule 12(b) motion, no § 101 motion to dismiss, no motion to transfer, no motion to stay pending IP

I'll search several angles for press coverage of this specific case.

That Unified Patents docket result contains a significant correction to the prior section. Let me verify and then hunt for press coverage.

Found a key correction: the docket shows voluntary dismissal with prejudice on 10/5/2018, not a mid-2020 termination. Now let me look for actual press coverage.

Press and media coverage

There is essentially no case-specific press coverage of Realtime Adaptive Streaming v. Charter Communications. I searched the caption, the civil action number (1:18-cv-01345), the plaintiff and both defendants, and each of the three asserted patent numbers (7,386,046; 8,934,535; 9,769,477) across general web search. Every hit that named Charter and this docket number was a court-record aggregator or a primary document — UniCourt, Docket Alarm, the Unified Patents district court portal, the Stanford NPE Litigation Database, PTAB petitions that list the suit among "'477 patent related matters," and patent specifications citing the complaint. I found no Reuters, Bloomberg Law, Law360, Ars Technica, The Verge, IPWatchdog, Patently-O, EFF, JD Supra, or trade-press article about the Charter suit itself, and no reported damages figure, settlement term, or verdict — consistent with a suit that never reached a substantive ruling.

This matters because the prior section's account of the case's disposition is wrong and should be corrected. The Unified Patents docket shows Realtime filed a NOTICE of Voluntary Dismissal of Case WITH PREJUDICE on October 5, 2018 (entered by Jay Chung for plaintiff), and the clerk's text entry the same day reads: "Civil Case Terminated pursuant to the notice of dismissal or stipulation to dismiss filed in this case on 10/5/18." So the case ended roughly four months after filing — before any answer (due 8/17/2018), before the 10/31/2018 scheduling conference, and before the Alice and IPR losses that later gutted the campaign. The earlier inference of a mid-2020 termination was an artifact of UniCourt's stale refresh: UniCourt actually still displays the case as "Pending - Other Pending," which shows its data simply never caught up rather than that the case survived to 2020. Whether the with-prejudice dismissal followed a license, a settlement payment, or something else is not established by anything I found — the docket records dismissal, not its consideration, and no outlet reported terms. The dismissal-with-prejudice form and the timing are at least consistent with an early commercial resolution, but that is inference, not reporting.

The coverage that does exist is campaign-level and concerns sister cases, and I flag it as indirect. Law360 maintains a case page for the JPML proceeding, In re: Realtime Adaptive Streaming LLC Patent Litigation, MDL No. 2845, carrying an August 2, 2018 item headlined "JPML Won't Centralize IP Rows Against Hulu, Netflix, Others," reporting that the panel declined to centralize nine compression-patent suits in Colorado or Texas because the allegations against the companies were "too disparate." I could not retrieve the article's full text and therefore cannot confirm whether it names Charter, though the D. Colo. Realtime suits were part of the centralization request. On the patent side, Mealey's (via Law360 Authority) reported on 2020-03-31 that the PTAB had, in a March 30 final written decision in Netflix v. Realtime Adaptive Streaming, No. IPR2018-01817, canceled all 14 challenged claims of a bandwidth-sensitive data compression patent — a decision that helped collapse the family's value but postdates and does not involve Charter. Law360 also reported on 2025-02-05 that a Colorado federal judge ruled Dish entitled to nothing after the Federal Circuit axed a $3.9 million fee award in the Sling TV branch of the campaign, and Alston & Bird summarized the August 23, 2024 Federal Circuit decision vacating that exceptionality finding, cataloguing the six "red flags" the district court had relied on. None of this reporting discusses Charter.

Where accounts go beyond the record: the only genuinely analytical, non-record commentary I located concerns the campaign's overall trajectory — the JPML's refusal to centralize, the Alice rulings in Delaware and Colorado, and the fee litigation — not this docket. Anything characterizing the Charter case as a settlement, a license, or a Realtime "win" would be unsourced extrapolation; the press record is silent, and the docket supports only "dismissed with prejudice by plaintiff on 10/5/2018." I also note a minor tension between the case metadata (which correctly lists the status as terminated) and the earlier summary's framing of when and how termination occurred, which should be revised in light of the October 2018 voluntary dismissal.

Sources

• IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF COLORADO
• UNITED STATES PATENT AND TRADEMARK OFFICE BEFORE THE PATENT TRIAL AND APPEAL BOARD
• separate litigations against other defendants across the country: Realtime Adaptive Streaming LLC v
• Charter Communications, Inc. - Charter Communications, Inc.
• Complaint for Patent Infringement, filed in Realtime Adaptive Streaming LLC v
• Realtime Adaptive Streaming LLC
• Spectrum Management Holding Company, LLC
• UNITED STATES PATENT AND TRADEMARK OFFICE
• Realtime Adaptive Streaming LLC v
• Docket Alarm | Litigation Outcomes, Delivered - - All Courts
• 1:18-cv-01345 - Realtime Adaptive Streaming LLC v. Charter Communicationsinc et al. - Text
• Realtime Adaptive Streaming, LLC v. Charter Communications,Inc. - This case was last updated from U

I'll research the plaintiff's counsel of record for this case across docket aggregators, court filings, and firm sources.

Key finding already: the case terminated in October 2018, not 2020 — I'll verify and flag that. Now let me pin down each attorney's firm and role.

Plaintiff's Counsel of Record — Realtime Adaptive Streaming LLC v. Charter Communications, Inc., No. 1:18-cv-01345 (D. Colo.)

Bottom line: Plaintiff's entire roster of record came from one firm — Russ, August & Kabat ("RAK"), Los Angeles — with no Colorado local counsel and no in-house counsel appearing. The appearances were entered in two waves (June 11, 2018 and August 17, 2018) and the case was dismissed roughly four months after filing.

⚠️ Correction to the existing case overview — termination date

The prior section states the case was "consistent with termination in mid-2020" and that the terminating entry could not be sourced. That inference is wrong, and I can now correct it from the docket text: the Unified Patents litigation portal docket for this case records, verbatim, "Civil Case Terminated pursuant to the notice of dismissal or stipulation to dismiss filed in this case on 10/5/18" (Unified Patents portal, D. Colo. 1:18-cv-01345). The docket also shows the complaint, summons, service on 6/4/2018, and nothing suggesting a litigated 2020 track. The "mid-2020" date in the prior summary was an artifact of UniCourt's last PACER refresh date (07/16/2020), not the termination date; UniCourt's "Pending" status flag is stale and should be disregarded. I did not obtain the dismissal notice itself (ECF number unconfirmed), so whether the dismissal was with or without prejudice, and whether any license or settlement accompanied it, remains unconfirmed. The dismissal likely relates to Charter's IPR petitions against the '477 patent (see IPR2018-01187, filed by Baker Botts for a petitioner group that designated this Charter case as a related litigation, per the Petitioner's Updated Mandatory Notices) — but that causal link is my inference, not a sourced finding.

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Counsel of record for Plaintiff

Marc Aaron Fenster — Lead counsel / trial counsel; the senior lawyer on the file

• Firm: Russ, August & Kabat, 12424 Wilshire Boulevard, 12th Floor, Los Angeles, CA 90025 (mfenster@raklaw.com; 310-826-7474). CA Bar No. 181067.
• Docket: Notice of Entry of Appearance filed 6/11/2018 (ECF No. 12 per UniCourt's docket text; the 6/11/2018 wave occupies ECF Nos. 10–13).
• Experience: RAK co-founder (2003), co-chair of Litigation and chair of the Patent Litigation department; previously Irell & Manella (1995–2003); B.S./M.S. UC San Diego engineering, J.D. UCLA. He is RAK's first chair in its run of nine-figure patent verdicts: SPEX Technologies v. Western Digital ($315M, C.D. Cal.), Headwater Research v. Samsung ($279M verdict / ~$340M judgment, E.D. Tex. 2023), MR Technologie v. Western Digital ($262M), AlmondNet v. Amazon ($122M, W.D. Tex. 2024), Solas OLED v. Samsung ($62.7M, E.D. Tex. 2021), and argued the Federal Circuit reversal in Mirror Worlds v. Facebook (RAK firm bio). Notably, he and the same RAK team also represented the patent-holding parent Realtime Data LLC d/b/a IXO in Riverbed Technology v. Realtime Data (N.D. Cal. 3:17-cv-03182) — i.e., this was in-house-adjacent, repeat work for the Fallon patent family, not a one-off engagement.

Reza Mirzaie — Lead/principal attorney for plaintiff; second chair to Fenster

• Firm: Russ, August & Kabat, Los Angeles (rmirzaie@raklaw.com). CA Bar No. 246953.
• Docket: Notice of Entry of Appearance 6/11/2018 (one of ECF Nos. 10–13).
• Experience: RAK partner and Fenster's co-lead on the firm's largest verdicts — Headwater v. Samsung ($279M), SPEX v. Western Digital, MR Technologie v. Western Digital, AlmondNet v. Amazon, EcoFactor v. Google. He is the RAK attorney most consistently listed across the Realtime Adaptive Streaming campaign filings (e.g., D. Colo. 1:17-cv-02869, Realtime v. Apple, where he is listed first among plaintiff's counsel).

Brian David Ledahl — Of counsel / case attorney (later appearance)

• Firm: Russ, August & Kabat, Los Angeles (bledahl@raklaw.com). CA Bar No. 186579.
• Docket: Notice of Entry of Appearance for Plaintiff filed 8/17/2018 — the same date the defendants' answer deadline was extended by stipulation, which suggests he was added as the case moved toward responsive pleading practice.
• Experience: RAK partner; co-counsel with Fenster on the Mirror Worlds v. Apple Federal Circuit appeal (No. 18-2276, argued by Fenster) and on Headwater v. Samsung; listed on Realtime's plaintiff-side papers in the parallel D. Colo. actions.

C. Jay Chung (docketed as "Jay Young Chung") — Case attorney

• Firm: Russ, August & Kabat, Los Angeles (jchung@raklaw.com). CA Bar No. 252794.
• Docket: Notice of Entry of Appearance 6/11/2018.
• Experience: RAK associate/partner in the patent litigation group; the Realtime campaign's principal signatory on case-management and stay papers (he signed the joint stipulation to stay in Realtime v. Google/YouTube, C.D. Cal. 2:18-cv-03629) and appears as plaintiff's counsel of record across the D. Colo. Realtime filings.

Philip X. Wang — Case attorney

• Firm: Russ, August & Kabat, Los Angeles (pwang@raklaw.com). CA Bar No. 262239.
• Docket: Notice of Entry of Appearance 6/11/2018.
• Experience: RAK patent litigator; appeared for Realtime in both the D. Colo. Apple action and the C.D. Cal. Google/YouTube action, and listed on Realtime's PTAB filings. Brother of (and frequent co-counsel with) RAK partner Benjamin T. Wang.

"Eric Bryan Fenster" — Filing attorney on the complaint (ECF No. 1); status as a distinct licensed attorney UNCONFIRMED

• Docket: The complaint's CM/ECF entry reads "Attorney Eric Bryan Fenster added to party Realtime Adaptive Streaming, LLC(pty:pla)" (ECF No. 1, filed 6/1/2018); he is also the filer on the Corporate Disclosure Statement (ECF No. 2), AO 120 notice (ECF No. 3), Notice of Case Association (ECF No. 4), and summons request (ECF No. 5). UniCourt lists him as a separate plaintiff attorney alongside Marc Aaron Fenster.
• Sourcing caveat — flag this: I could not verify that "Eric Bryan Fenster" is a licensed attorney at RAK or elsewhere. RAK's published attorney roster and bio materials surface Marc A. Fenster only; his California bar number is 181067. "Eric Bryan Fenster" may be a distinct RAK attorney, an e-filing/administrative account name, or a docket-data artifact. Do not describe him as lead counsel without further verification. I found no State Bar record or firm bio for him, and no court appearance under that name beyond the initial filing cluster.

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Gaps and things I could not confirm

• No Colorado local counsel of record is visible. The D. Colo. docket extracts show only RAK (Los Angeles) attorneys appearing for plaintiff — no Denver or Boulder firm. This is plausible: D. Colo. has no mandatory local-counsel rule, unlike many districts. However, the out-of-state RAK lawyers would have required pro hac vice admission, and I did not locate the pro hac vice motions/orders on the docket extracts; the aggregators do not surface them. Treat PHV admission as unconfirmed.
• No in-house counsel appeared for Realtime — consistent with its characterization as a non-practicing licensing entity.
• Timothy T. Hsieh (RAK) appears as plaintiff's counsel in the sister case Realtime v. Apple, D. Colo. 1:17-cv-02869 (see the parties' joint discovery/claims summary, ECF No. 31), but I found no entry of appearance for him in the Charter case. Do not include him here.
• No sealed filings or sealed appearances are indicated; the docket is short (complaint, corporate disclosure, AO 120, case-association notice, summons, returns of service, five plaintiff appearances, defense appearances, answer-deadline extension, and the October 5, 2018 dismissal).
• Because the case ended ~4 months after filing, none of these attorneys did claim-construction or trial work in this action; their Realtime-family experience is drawn from the parallel Apple, Google, Cisco and Sling/DISH matters.

One cross-reference worth adding downstream

The RAK/Realtime relationship is a useful data point for the campaign narrative: the same firm and largely the same attorneys (Fenster, Mirzaie, Ledahl, Chung, Wang) represented both Realtime Data LLC d/b/a IXO (the patent-holding parent, as defendant in Riverbed) and Realtime Adaptive Streaming LLC (the assertion vehicle), which reinforces the "carve-out assertion vehicle" characterization rather than the "individual-inventor-started" label in isolation.

I'll research the defense-side counsel of record using docket aggregators, firm announcements, and related filings.

Important: the docket text indicates voluntary dismissal with prejudice on 10/5/2018 — earlier than prior summary suggested. Let me pin down the two defense attorneys' firms.

Let me verify the complete docket to confirm no other defense appearances, and check the dismissal entry.

Counsel of Record for the Defendants

Threshold finding, and a correction to the prior sections. The available docket text resolves the disposition question flagged earlier: this case did not run into 2020. Plaintiff filed a Notice of Voluntary Dismissal of Case WITH PREJUDICE on October 5, 2018, and the clerk entered: "Civil Case Terminated pursuant to the notice of dismissal or stipulation to dismiss filed in this case on 10/5/18" (Unified Patents litigation portal docket for 1:18-cv-01345; UniCourt docket). That is ~19 months earlier than the mid-2020 inference drawn from UniCourt's stale refresh date. The prior summary's statement that termination timing/mechanism was "not confirmed" should be updated: the mechanism was Federal Rule of Civil Procedure 41(a)(1)(A)(i) unilateral dismissal, with prejudice, filed by plaintiff's counsel Jay Young Chung — not a stipulation of dismissal and not a court order. No settlement terms were ever made public in this docket, so a license/resolution can be inferred but not sourced. Because the case died roughly seven weeks after the final answer deadline, no answer, Rule 12 motion, or infringement/contentions exchange appears in the docket — which is why the defense-side record is unusually thin.

The two attorneys of record

Docket support for the roles. Duston's entry of appearance reads: "NOTICE of Entry of Appearance by Thomas Lee Duston on behalf of All Defendants… added to party Charter Communications, Inc. (pty:dft), added to party Spectrum Management Holding Company, LLC (pty:dft)" (July 25, 2018). Seedorf's signature appears on the "Second MOTION for Extension of Time to File Answer or Otherwise Respond re #1 Complaint, by Defendants Charter Communications, Inc., Spectrum Management Holding Company, LLC" (ECF No. 15), i.e., he was functioning as the noticing/local attorney while Duston handled the substantive side. The docket also reflects a stipulated first extension (answer moved to 7/16/2018) and a minute order granting the second (answer due 8/17/2018).

Attorney-by-attorney detail

Thomas L. Duston — Marshall, Gerstein & Borun LLP (Chicago). Duston is a partner in Marshall Gerstein's IP Litigation group and a past chair-caliber figure in Chicago patent practice (repeatedly listed in Best Lawyers in IP Litigation, Patent Litigation, and Patent Law; Martindale-Hubbell AV Preeminent; "IP Star"). His bar admissions include the District of Colorado, the Federal Circuit, Third, Fifth, and Seventh Circuits, N.D. Ill., E.D. Tex., W.D. Tex., E.D. Mich., E.D. Wis. (firm bio PDF). Two points make his selection unsurprising here: (i) his bio expressly lists Charter Communications as a client, and (ii) his representative-experience list includes defending "one of the largest private companies in the U.S. relating to asymmetric data compression techniques for use with online digital images" — the same Fallon-family compression architecture Realtime asserted. He also has a heavy PTAB practice (pro hac vice admissions in numerous IPRs, e.g., IPR2014-01326/-01327/-01328 and IPR2021-01577), which fit a defendant facing a parallel IPR wave — though Charter itself did not petition for IPR against these patents.

Kyle P. Seedorf — Taylor/Anderson LLP (Denver). Seedorf is a Colorado-barred litigator at a Denver trial boutique; his published practice description (MODL 2018 annual meeting brochure) covers premises liability, product liability, personal injury, property damage, insurance coverage analysis, and commercial/contract litigation, with a noted specialty defending premises owners in mass-shooting litigation. He is also identified in a February 1, 2015 Colorado patent verdict report as "Attorney for defendant: Kyle Seedorf of Taylor Anderson in Denver, CO" (patents 8,023,580 and 8,457,228), confirming he does take local-counsel patent assignments. Treat his role as local counsel of record, not as the case strategist — nothing in the record attributes the defense's substantive positions to him.

What is not in the record (do not assume)

• No in-house counsel appeared. Neither Charter nor Spectrum Management Holding Company entered an in-house attorney appearance on this docket; the only two defense entries are Duston and Seedorf. Charter's legal department may well have directed the defense, but that is unsourced.
• No additional Marshall Gerstein or Taylor Anderson attorneys appeared. The aggregator defendant-attorney lists (UniCourt) contain exactly these two names; no pro hac vice motions appear in the available docket text, consistent with Duston already being D. Colo.-admitted.
• No Charter-side PTAB counsel. In the Realtime Adaptive Streaming IPR cluster, Charter appears only as a "related litigation" reference in third-party petitions (e.g., Google's Paul Hastings petition and Netflix/Hulu petitions referencing "Charter Commc'ns, Inc. et al., Case No. 1:18-cv-01345 (D. Colo.)"); Charter was not a petitioner. The Realtime-side PTAB counsel (Noroozi PC / Russ August & Kabat; later Fenster) is plaintiff-side and should not be confused with defense counsel.
• Sourcing caveat. PACER itself was not directly queried here; the docket reconstruction rests on the Unified Patents court-record mirror, UniCourt, and Docket Alarm. All three agree on the two defense attorneys and the 10/5/2018 with-prejudice dismissal. Firm/office details come from Marshall Gerstein's and Taylor Anderson's own publications. No Law360 or Reuters item on this specific two-attorney appearance was located — the case was too short-lived to generate press coverage of counsel.

One cross-reference flag: the earlier overview noted Magistrate Judge Kristen L. Mix as initial judge with Docket Alarm later showing Magistrate Judge S. Kato Crews. Both are consistent with a magistrate-judge assignment with a consent flag (Docket Alarm flags "MJ CIV PP," i.e., magistrate civil pilot), and the reassignment reflects later MJ rotation — but neither fact bears on counsel, and with dismissal in October 2018 no consent election or Article III reassignment ever mattered substantively.