Litigation

Cedar Lane Technologies Inc. v. Silent Sentinel Ltd.

6:22-cv-00960

Patents at issue (1)

6473527

Summary

Cedar Lane Technologies Inc. sued Silent Sentinel Ltd. in W.D. Tex.; family-level listing.

Case overview & background

Plain-language overview of the case: parties, accused product, patents at issue, and why the suit matters.

I'll research this case thoroughly before writing the overview.

Now let me dig into the specific patent and the complaint details.

Case Overview — Cedar Lane Technologies Inc. v. Silent Sentinel Ltd., No. 6:22-cv-00960 (W.D. Tex.)

The parties. Cedar Lane Technologies Inc. is a Canadian entity incorporated in British Columbia in April 2019 and is a textbook non-practicing entity: it has no operating business, no website, and monetizes a portfolio acquired largely through assignments from Intellectual Ventures-related entities (IPWatchdog's weekly filing table tags Cedar Lane as an "[IV selloff]" plaintiff). It is represented in this and hundreds of sibling suits by Isaac Rabicoff of Rabicoff Law LLC, and by Lex Machina's counting it was the single most frequent patent plaintiff in the U.S. in 2021; a Seyfarth NPE Showcase published in October 2022 — the same month this case was filed — described Cedar Lane as "one of the more prolific NPEs in the patent enforcement market," noted that sixteen of its cases were filed in W.D. Tex. in the week of September 12, 2022 alone, and that "none of their cases have reached the trial stage," characterizing the campaign as "conventional patent-based nuisance litigation" aimed at modest, high-volume settlements (Seyfarth/Mondaq). Silent Sentinel Ltd. is the opposite: a genuine operating manufacturer, a UK private limited company (Companies House No. 04556945, incorporated October 2002, Hertfordshire) that designs and builds ruggedized long-range thermal (LWIR/MWIR) and HD/4K visible surveillance camera platforms and the NexOS detection software for border, maritime, defense, aviation and critical-infrastructure customers, with a U.S. division (Silent Sentinel Inc.) and roughly 47–72 employees and ~£10.9M turnover in FY2022 per its filed accounts (great.gov.uk profile; Pomanda/Companies House data).

The accused technology and the patent. The case sat in Cedar Lane's "image processing" cluster rather than its remote-control or panoramic-imaging clusters. Cedar Lane's boilerplate complaints in this campaign target camera- and imaging-equipped devices generally, and the campaign's core three-patent package consists of U.S. Patent Nos. 6,473,527, 6,972,790 and 8,537,242 — the same trio asserted against Qualcomm, Lexmark, Xerox/OpenEye, Basler and others in 2021–22 (Law Street Media; UniCourt, Cedar Lane v. Qualcomm, 6:22-cv-00046). The case metadata for this action lists only the '527 patent, Module and Method for Interfacing Analog/Digital Converting Means and JPEG Compression Means — a "family of one," priority June 1999, issued October 2002, claiming an interface module that sits between an A/D converter and a JPEG compressor and uses a read control means, a memory means sized to hold only the same small number of image lines as the JPEG engine's built-in buffer (e.g., 8 lines / one 8×8 block), and an output control means, so that image blocks are fed directly to the compressor without an external RAM buffer; claim 1 is drafted in means-plus-function form ("read control means," "memory means," "output control means"), making § 112(f) structure the natural infringement battleground (Stanford NPE Database, '527; complaint-structure analysis of the parallel '527 cases). Two sourcing caveats: first, IPWatchdog's September 23, 2022 filing roundup lists 6,972,790 next to this case caption (IPWatchdog), while the Stanford database maps the case to the '527 — I could not retrieve the Dkt. 1 complaint itself to confirm whether one or both patents were pleaded, and Cedar Lane's complaints in this campaign typically attach claim charts as exhibits that are not in the public file. Second, the '527 patent had expired by the time of suit (a Shenzhen IP Protection Center alert on a companion 2022 case notes the '527 as 已失效/lapsed), which would have capped recoverable damages to the six-year lookback under 35 U.S.C. § 286 — i.e., roughly September 2016 to mid-2019.

Procedural posture and why the case matters. Filed September 15, 2022 in the Waco Division of the Western District of Texas and assigned directly to Judge Alan D. Albright (the docket notes direct assignment "due to previous filed cases … having same Plaintiff and patent case number"), with service on Silent Sentinel on September 23, 2022 (Dkt. 9). Venue is the story of the campaign: W.D. Tex./Waco was then the busiest patent venue in the country, and Albright's aggressive scheduling orders made it the default filing ground for high-volume plaintiffs — which is precisely why an NPE picked a single UK camera maker with a thin U.S. footprint as a defendant there. Silent Sentinel did not default: represented by Neil J. McNabnay and Lance E. Wyatt, Jr. (docket entries Dkt. 10, 11; firm affiliation not verified in the sources retrieved), it filed an answer, affirmative defenses, a jury-demanding counterclaim and a Rule 7.1 disclosure statement on October 11, 2022 — then, one day later, the parties filed a Joint Stipulation of Dismissal (Dkt. 12) and the clerk transmitted the AO-120 report to the USPTO (Dkt. 13), closing the case roughly four weeks after filing (UniCourt docket; Patexia document list). That arc — fast answer and counterclaim followed immediately by stipulated dismissal — is the modal outcome for this campaign and makes the case a compact illustration of the 2022 NPE settlement mill rather than a merits precedent; notably, the dismissal terms (whether with or without prejudice, and whether any license or payment was involved) are not disclosed in the public docket materials I could access, and no IPR or other PTAB proceeding involving the '527 patent appears in the record for this case — the only notable PTAB activity against Cedar Lane's portfolio that surfaces in the sources is Unified Patents' 2019 IPR against an unidentified Cedar Lane patent (per a Shenzhen IP Protection Center alert), which I could not verify by proceeding number. The broader market context is that Silent Sentinel was acquired by Motorola Solutions on February 16, 2024 (Motorola press release), so the accused camera line — including the NexOS-equipped long-range thermal platforms — now sits inside a NYSE-listed acquirer's video-security portfolio, although the litigation had already been dismissed some sixteen months earlier and the acquisition post-dates it.

Key legal developments & outcome

Major rulings, motions, claim construction, settlements, and the present posture or final disposition.

I'll research this case systematically, starting with the docket and case metadata.

The docket shows a very rapid dismissal. Let me dig into the specifics of the complaint, the dismissal terms, and any PTAB activity.

Let me check CourtListener's docket and search for PTAB challenges to the asserted patents.

Cedar Lane Techs. Inc. v. Silent Sentinel Ltd., No. 6:22-cv-00960 (W.D. Tex.)

Bottom line: This is a 27-day case. It was filed 2022-09-15, answered 2022-10-11, and terminated by a joint stipulation of dismissal filed 2022-10-12 — before any scheduling order, discovery, Markman proceeding, or PTAB petition could exist. There is no merits ruling of any kind to report. Its significance is almost entirely as a data point on Cedar Lane's 2022 filing-and-settle campaign, not as a source of patent law.

1. Chronological docket

Date Event Docket
2022-09-15 Complaint for patent infringement filed with Exhibits 1–6, civil cover sheet, Rule 7.1 disclosure, AO-120 form, summons request, and a Notice of Related Case #1, #3–#6
2022-09-15/16 Case directly assigned to Judge Alan D. Albright (Waco) — the assignment note states this was done "due to previous filed cases as having same Plaintiff and patent case number" docket note
2022-09-16 Notice of appearance by Isaac Rabicoff (Rabicoff Law LLC); Albright standing orders (patent standing order + pretrial procedures order) applied #8
2022-09-23 Silent Sentinel served #9 (return filed 2022-09-30)
2022-10-11 Answer, affirmative defenses, and counterclaims, jury demand, ~10 pp.; appearance of Neil J. McNabnay; Rule 7.1 disclosure filed same day #10, #11
2022-10-12 Joint stipulation of dismissal filed by Cedar Lane as a "MOTION to Dismiss," with proposed order #12
2022-10-12 Report on Patent/Trademark (AO-120) sent to USPTO — i.e., clerk closed the case #13
2022-10-12 Case terminated / "Disposed" —

Sources: Unicourt docket mirror (link); Patexia document list (link).

2. Filing and pleadings — what the record shows

  • Complaint (2022-09-15). A short-form Cedar Lane complaint with six exhibits (the same template used across its campaign: patent copies plus claim charts). Case metadata lists U.S. Patent No. 6,473,527 ("interface module" for feeding image blocks to a JPEG compressor without external memory) as the patent at issue, and I treat that as authoritative here.
  • A patent-scope discrepancy worth flagging: the IPWatchdog weekly roundup table for the week of filing lists 6:22-cv-00960 as asserting 6,972,790, and Stanford's NPE Litigation Database lists this case under both 6,473,527 and 6,972,790. The six-exhibit structure is consistent with Cedar Lane's standard multi-patent package ('527 + '790, and in many cases 8,537,242). I could not retrieve the complaint PDF to confirm the count, so treat the exact patent set as partly unverified; under your metadata rule, '527 controls.
  • Answer and counterclaims (2022-10-11). Silent Sentinel did not move to dismiss, transfer, or stay. It answered substantively, pleaded affirmative defenses, and asserted counterclaims against Cedar Lane (docket text does not reveal the counts; in parallel Cedar Lane cases defendants typically pleaded DJ counts of non-infringement and invalidity). Defense counsel of record: Neil J. McNabnay and Lance E. Wyatt, Jr. — the same pair that appeared for Cedar Lane defendants in other matters (e.g., Cedar Lane v. Snap One Holdings, D. Del. 1:22-cv-01626). I could not independently verify their firm affiliation from the docket text available.
  • The answer was filed three days before the 2022-10-14 answer deadline, and the joint stipulation followed one day later. That sequence — full answer plus counterclaims, then immediate stipulated dismissal — is the classic signature of a negotiated resolution (license/payment) rather than a merits concession.

3. The dismissal (2022-10-12)

  • Docketed as "MOTION to Dismiss (Joint Stipulation of Dismissal)" (Doc. #12) with a proposed order; the AO-120 report to the PTO issued the same day and the case was terminated.
  • Whether the dismissal was with or without prejudice is not visible in the available docket text. Judge Albright's practice and Cedar Lane's practice elsewhere (Cedar Lane v. Snap Inc., D. Del. 1:22-cv-00058; Cedar Lane v. HP Inc., W.D. Tex. 6:22-cv-00040; Cedar Lane v. Snap One, D. Del. 1:22-cv-01626) was dismissal with prejudice, but I could not confirm the term here. No public settlement amount, license, or consent judgment appears on the docket. Sourcing caveat: the financial terms are unknown and I am not inferring a number.

4. Stages never reached (important for the "outcome" analysis)

Because the case closed 27 days after filing, none of the following ever occurred, and there is no law to cite for any of them:

  • No motion to dismiss under Rule 12(b)(6), no § 101 motion, no transfer motion (§ 1404(a)), no motion to stay pending IPR, no motion to sever.
  • No scheduling order, no discovery — no infringement contentions, no invalidity contentions, no claim-construction exchange, no depositions, no ESI.
  • No Markman proceeding — no claim terms briefed or construed (notably, no construction of the '527 "memory means" / "read control means" means-plus-function limitations, which is where the '527 cases would have turned).
  • No summary judgment, no trial, no verdict, no JMOL/new-trial motions, no § 285 fee motion.
  • No appeal to the Federal Circuit; no judgment to appeal from.

5. Parallel PTAB proceedings

  • No IPR or PGR on the '527 (or '790) patent in connection with this case, and no petition by Silent Sentinel, was identified. Any petition would have had to be filed after service (2022-09-23) and would not have been instituted before the case closed on 2022-10-12 — there is no realistic window in which a PTAB proceeding could have affected this litigation.
  • For portfolio context only: *IPR2020-00006, Unified Patents, LLC v. Cedar Lane Technologies Inc., on U.S. Patent No. 7,173,177* (a different Cedar Lane patent, not asserted here) was instituted 2020-03-18, and the final written decision (2021-02-12, panel: Kaiser, Beamer, Howard) invalidated claims 1–18 and 23. Sources: Patexia; RPX. This shows Cedar Lane's portfolio was being challenged by third parties, but it is not a PTAB ruling on the patent at issue in this case and did not touch this litigation.
  • Because Cedar Lane's cases essentially never reach institution-stage IPR litigation (they resolve at the pleadings), there is little to no PTAB estoppel or Fintiv jurisprudence generated by this matter.

6. Strategic read

  1. This is a nuisance-value licensing docket, not a litigation. Cedar Lane was the single most prolific patent plaintiff of 2022 and reported a ~96% settlement rate among terminated cases, with a strong W.D. Tex. preference (IAM interview with Cedar Lane president Greg Benoit, 2023-03-20). Seyfarth's "NPE Showcase" analysis made the same observation: "None of [Cedar Lane's] cases have reached the trial stage." (JD Supra).
  2. The forum and assignment were engineered. Cedar Lane filed sixteen cases in W.D. Tex. in the week of 2022-09-12 alone, all through Rabicoff Law; this case was assigned to Judge Albright as a related case by plaintiff-side designation (Doc. #6, Notice of Related Case), which avoids the randomization a defendant might otherwise hope for.
  3. Silent Sentinel's defensive posture is instructive but untested. It answered with counterclaims within 18 days rather than seeking transfer, stay, or § 101 dismissal — and settled the next day. Whether the counterclaims or the prospect of Albright-hosted invalidity contentions drove the settlement is not in the public record.
  4. Prosecution-risk context for plaintiff's counsel:

Plaintiff representatives

Counsel of record for the plaintiff(s): attorneys, firms, and roles (lead counsel, of counsel, local counsel).

I'll research the docket and counsel for this case.

Counsel of Record for Plaintiff Cedar Lane Technologies Inc.

Cedar Lane Technologies Inc. v. Silent Sentinel Ltd., No. 6:22-cv-00960 (W.D. Tex., Judge Alan D. Albright) — filed 9/15/2022; dismissed by joint stipulation 10/12/2022 (ECF No. 12), AO 120 report sent to USPTO 10/12/2022 (ECF No. 13).

Bottom line

Plaintiff used a single attorney of record — Isaac Phillip Rabicoff of Rabicoff Law LLC — who was functionally lead counsel, sole counsel, and (in effect) local counsel. No other firm, no separate local counsel, and no in-house counsel appeared on the docket, and there is no pro hac vice motion in this case (he entered his appearance directly, ECF Nos. 2 and 8).

Attorney Role Firm / Office Note on experience
Isaac Phillip Rabicoff Lead counsel and sole attorney of record for Cedar Lane (ECF No. 2, Notice of Appearance, 9/15/2022; corrected/again at ECF No. 8, 9/16/2022). Signed the complaint, Rule 7 disclosure statement, summons request, notice of related case, and the joint stipulation of dismissal (ECF No. 12). Rabicoff Law LLC — Chicago, IL (4311 N Ravenswood Ave, Suite 315, Chicago, IL 60613; tel. (773) 669‑4590; isaac@rabilaw.com). The firm has also used addresses at 73 W Monroe St, Chicago, IL and 1655 Fort Myer Drive, Suite 724B, Arlington, VA in Cedar Lane filings around this period. The docket in this case shows only "Rabicoff Law LLC." The architect of Cedar Lane's nationwide campaign — the dominant filer for Cedar Lane in W.D. Tex. and elsewhere; the Sept. 2022 wave that produced this case (16 Cedar Lane suits filed in W.D. Tex. the week of Sept. 12, 2022, including 6:22-cv-00961, -00962, -00963, -00967) was his. Notoriety: sanctioned $1,000 and referred to the N.D. Cal. Standing Committee on Professional Conduct by Judge Vince Chhabria in Cedar Lane Techs. v. Blackmagic Design, No. 20‑cv‑01302‑VC (N.D. Cal. Nov. 19, 2020); the Committee's final report in In re Isaac Rabicoff, No. 20‑mc‑80206‑JD, resolved the matter with an agreement that he pay ~$9,193 in unpaid pro hac vice fees.

Sourcing and verification notes

Caveats / things I could not confirm

  • Nothing in this case is sealed, and there is no indication counsel "hadn't appeared" — appearances were filed on day one (and re-filed the next day).
  • I could not verify from a primary source (e.g., the complaint's signature block or a W.D. Tex. attorney-admission record) whether Rabicoff was admitted to the W.D. Tex. bar generally or was relying on a prior pro hac vice admission; no PHV motion appears on this docket, and W.D. Tex. practice ordinarily contemplates local counsel or PHV for out-of-state counsel, so his appearance without either is best described as an appearance entered directly on the docket rather than a confirmed admission status.
  • No local counsel is listed anywhere on this docket, unlike some Cedar Lane suits in other districts (e.g., D. Del., where Bayard's David de Bruin has appeared as local counsel in Cedar Lane matters). If you need confirmation of the exact firm address used on the complaint in this case, that requires pulling ECF No. 1 from PACER.
  • Cedar Lane's president, Greg Benoit, is a corporate officer, not counsel of record, in this case. (Defendant Silent Sentinel was represented by Neil J. McNabnay and Lance E. Wyatt, Jr., of Fish & Richardson, Dallas — noted only for completeness.)

Defendant representatives

Counsel of record for the defendant(s): attorneys, firms, and roles (lead counsel, of counsel, local counsel).

I'll research the docket and counsel appearances for this case.

Counsel of Record for Silent Sentinel Ltd. — 6:22-cv-00960 (W.D. Tex.)

The docket is short and complete: the case was filed 9/15/2022, Silent Sentinel answered through counsel on 10/11/2022, and the parties stipulated to dismissal on 10/12/2022 (Dkt. 12), with the AO-120 form sent to the PTO the same day (Dkt. 13). Only two attorneys ever entered an appearance for the defendant, and both are from the same firm — Fish & Richardson P.C., Dallas. No separate local-counsel firm appeared, and the docket indexes no pro hac vice motions (consistent with both being Texas-barred).

Attorney Role Firm / Office Notes
Neil J. McNabnay Lead counsel of record (the senior principal who signed the Answer and Counterclaims, Dkt. 10; docket does not formally designate "lead," so this is an inference from role and seniority) Fish & Richardson P.C., 1717 Main Street, Suite 5000, Dallas, TX 75201 Longtime F&R patent litigator (TX bar 1997); lead/defense counsel in the Eolas Technologies v. Adobe/GoDaddy E.D. Tex. trial team, the Clear With Computers campaign, and Mirror Imaging v. PNC Bank (W.D. Tex., Judge Albright); Best Lawyers in America since 2015.
Lance E. Wyatt, Jr. Of counsel / second chair of record (filed the Rule 7 Disclosure Statement, Dkt. 11) Fish & Richardson P.C., 1717 Main Street, Suite 5000, Dallas, TX 75201 Texas Bar No. 24093397; frequent F&R appearance attorney in W.D. Tex. patent defense matters (e.g., Patent Armory v. Avis Budget Group, Secure Matrix v. Hanley-Wood, WirelessWerx v. EZ Web), and F&R's go-to signer on the firm's Cedar Lane defense engagements.

Sourcing and corroboration

Caveats

  • No in-house counsel appeared. Silent Sentinel Ltd. is a UK-based surveillance-camera maker (Stanstead Abbotts, Hertfordshire; acquired by Motorola Solutions in 2024); no in-house attorney is listed on this docket, and its Rule 7 disclosure was signed by firm counsel.
  • Nothing is sealed in the appearances — the counsel entries and the Answer/Counterclaims are public. The case terminated by joint stipulation before any scheduling order, discovery, Markman, or PTAB activity, so there is no further counsel record (no motions for admission, no substitution of counsel, no trial team) to report.
  • The docket does not use the labels "lead" or "of counsel." My role designations reflect which attorney signed which filing and relative seniority; treat them as analytical, not as court-recorded titles.
  • I found no Law360/Reuters coverage of this specific two-week case; the reporting exists only for Cedar Lane's campaign generally (e.g., the Seyfarth "NPE Showcase" post) and the underlying figures are corroborated by the docket.