SB IP Holdings, LLC v. Vivint Smart Home, Inc. et al.

I'll research this case and the parties before drafting the overview.

Key finding: the $45.4M verdict was in a different case (4:20-cv-00886) on different patents. Let me verify the docket and IPR history.

Now let me pin down the dismissal timing, remaining IPR outcomes, and patent titles.

Case Overview & Background

Parties. Plaintiff SB IP Holdings, LLC is a patent-holding affiliate of SkyBell Technologies, Inc., the video-doorbell maker. Judge Mazzant's opinion describes SBIP's parent as being "in the business of providing leading video doorbell and wireless security solutions," with SBIP owning "the right to assert and seek damages" on the entryway-management/video-doorbell patent family (Dkt. #34 at 2, SB IP Holdings LLC v. Vivint Smart Home, Inc., No. 4:21-cv-00912 (E.D. Tex. July 12, 2022)). SB IP's IPR mandatory notices confirm the corporate grouping, listing itself alongside SkyBell and EyeTalk365, LLC as co-parties in the SimpliSafe (D. Mass.) and Arlo (S.D. Cal.) declaratory-judgment actions and in the ITC § 337 action. So SB IP is best characterized as an operating company's assertion vehicle — functionally a PAE in litigation posture (no practicing entity named as plaintiff, single inventor Ronald Carter on the patents), but with a real product business behind it. Defendants are Vivint Smart Home, Inc. ("VSH"), a Delaware holding company headquartered in Provo, Utah with no Texas operations, and Vivint, Inc., its indirect operating subsidiary (VSH, Dkt. #6 at 5–6; IPR2022-01449, Paper 1 at 1). Vivint is one of the largest North American smart-home/security providers.

Accused technology. The complaint targeted an integrated ecosystem, not a single device: Vivint's Doorbell Camera and Doorbell Camera Pro, Control Panel, smart locks, Outdoor Camera Pro, Smart Drive Playback DVR, the iOS/Android apps, and the backend servers/gateways supporting them (per the complaint's accused-product definitions as reproduced in litigation databases). In other words, SB IP read its 2002–2003-priority family against the whole modern cloud-connected video-doorbell stack. Vivint's invalidity position — pressed in the IPRs — was that this stack was built on pre-2002 prior art (Vaios, Menard, Klein, Axis network cameras, Bluetooth/WPAN standards, Veo and AXCESS wireless cameras), which the Board ultimately accepted.

Patents asserted (all one 2002-priority Carter family):

Posture and venue. Filed November 18, 2021 in the Eastern District of Texas, Sherman Division, before Judge Amos L. Mazzant, III; the case was closed by an order stating "this action is dismissed with prejudice in its entirety." VSH opened with a Rule 12(b)(2)/(3) motion arguing it was merely a Utah holding company with no Texas contacts (Dkt. #6); Judge Mazzant granted SB IP jurisdictional discovery (Dkt. #34, July 12, 2022), then granted leave to amend to add Vivint, Inc. over VSH's first-to-file objection (Dkt. #35), based on Vivint, Inc.'s January 2022 C.D. Cal. declaratory-judgment filings. Venue matters here because E.D. Tex. was then the nation's dominant patent docket and because this was a companion case: SB IP's earlier suit against Vivint, Inc., No. 4:20-cv-00886, was already before Judge Mazzant, giving SB IP a home-field advantage that Vivint attacked through entity structure, a California DJ race, and the PTAB simultaneously.

Why it's notable. Three reasons. (1) Correcting a common conflation: the celebrated $45,418,641.70 jury verdict of October 23, 2023 and the August 26, 2024 final judgment (with enhancement denied) were entered in the sister case, 4:20-cv-00886, and rested on U.S. Patents 9,485,478 and 10,674,120 (claims 10 and 16 of the '478; claim 16 of the '120) — not the six patents asserted in this case. (2) IPR linkage: Vivint petitioned against all six patents (IPR2022-00810–00814 filed April 29, 2022, plus -01352, -01364, -01365 and -01449), and won final written decisions holding claims unpatentable in IPR2022-00811 ('184, Nov. 3, 2023), -01352 ('581, Mar. 19, 2024), -01364 ('184, Apr. 10, 2024), and -01449 ('644, June 5, 2024); SB IP's Federal Circuit appeals were later dismissed. (3

I'll research this case systematically, starting with the docket and any reported developments.

Key finding already: the $45.4M verdict was in a companion case (4:20-cv-00886), not this one. Let me pull the actual docket for 4:21-cv-00912 and the PTAB proceedings.

Now let me nail down the docket for 4:21-cv-00912 specifically (dismissal date, Markman, transfer/venue rulings) and the full set of IPRs.

Bottom line first: this case must be separated from its companion

The six patents in 4:21-cv-00912 did not produce the widely reported $45.4M verdict. That verdict belongs to a different E.D. Tex. case — No. 4:20-cv-00886-ALM (SB IP Holdings LLC v. Vivint, Inc.), which asserted a later generation of the same Carter/SkyBell patent family (U.S. Pat. Nos. 9,485,478 and 10,674,120). 4:21-cv-00912 asserted the older, priority-chain-damaged patents (’184, ’098, ’614, ’581, ’644, ’183) and ended in a dismissal with prejudice, not a judgment. Many litigation-data aggregators (including the PatSnap summary relied on in the existing case summary) conflate dockets across this dispute; the chronology below is built from primary documents where available.

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1. Filing and initial pleadings

I'll research the counsel of record for SB IP Holdings in this case.

Let me pull the actual docket for 4:21-cv-00912 (distinct from the related 4:20-cv-00886 case) to confirm who appeared.

Let me confirm the specific appearances on the 4:21-cv-00912 docket and identify lead counsel.

Counsel of Record for Plaintiff SB IP Holdings, LLC — SB IP Holdings, LLC v. Vivint Smart Home, Inc., No. 4:21-cv-00912-ALM (E.D. Tex., Sherman Div.)

Sourcing caveat up front: I could not open the live PACER docket sheet for 4:21-cv-00912 directly. The attorney list below is reconstructed from (a) the aggregated PACER docket records reproduced by PatSnap's litigation database for case 4:21-cv-00912, (b) CourtListener/Justia RECAP filings in the case (Dkts. #34, #35), (c) an actual case email produced as an exhibit in the parallel IPR (IPR2022-01449, Ex. 1039), and (d) the PTAB oral-hearing transcript in IPR2022-01449 identifying SB IP's counsel. No counsel names below are inferred or invented; where a designation is my characterization rather than a docket entry, I say so.

Plaintiff's counsel

Additional Cole Schotz personnel who appear on the sister docket (4:20-cv-00886) but are not confirmed on the 4:21-cv-00912 roster: Amanda Leigh DeGroote, Arjun Padmanabhan, Donald A. Ottaucink (Hackensack, NJ), Gianna Zapata (Hackensack, NJ), Ian Ross Phillips (Dallas). I list them only so you don't conflate the two dockets.

Important structural point on "lead counsel"

PACER's docket for the SB IP side does not show an express "LEAD ATTORNEY" flag in the records I could retrieve (by contrast, Vivint's David R. Wright is expressly flagged "LEAD ATTORNEY / PRO HAC VICE"). I designate Sorden as lead because he is the filer/signatory on the substantive briefs, the patent-owner advocate at the PTAB hearing, and the named appellant attorney on appeal — but treat that as an inference from conduct, not a docket designation.

Two corrections/clarifications relevant to the existing summary

1. Two parallel E.D. Tex. cases exist. 4:20-cv-00886 (filed 11/17/2020, SB IP Holdings LLC v. Vivint, Inc., terminated 08/26/2024) and this case, 4:21-cv-00912 (filed 11/18/2021, originally against Vivint Smart Home, Inc., with Vivint, Inc. added by the amended complaint deemed filed May 20, 2022 per Dkt. #35). The filing metadata in this prompt matches 4:21-cv-00912. Attorney lists must be read per-case, which is why some Cole Schotz names appear in one and not the other.
2. The $45.4M jury verdict was in the sister case, not this one. Press reporting (Texas Lawyer, Oct. 24, 2023) attributes the willful-infringement verdict to a Cole Schotz team before Judge Mazzant in the SB IP/Vivint litigation, on two patents surviving to trial out of seven asserted. That reporting does not pin the two patents to specific numbers in the sources I could access, so I will not assert which patents supported the verdict. This resolves the "could not confirm which patents supported it" gap only partially — the case is identifiable (the 2020 action), the two trial patents are not, on my current sources.

Explicitly not confirmed

• Whether any SB IP filing in 4:21-cv-00912 was sealed — I found no sealing order, but I also could not run a docket-sheet-level document review.
• Any in-house counsel for SB IP Holdings or SkyBell Technologies appearing of record — none appears in the records retrieved.
• Current firm affiliations for Craddock (Caldwell Cassady Curry vs. Cole Schotz) and Rifai-Bashjawish, which changed during/after the litigation.

Key sources: PatSnap litigation record for 4:21-cv-00912; CourtListener RECAP Dkts. #34, #35 (gov.uscourts.txed.211038); Justia opinion pages for Dkts. #34–35; IPR2022-01449 Ex. 1039 (B. King email, July 7, 2022); IPR2022-01449 oral hearing transcript, Apr. 10, 2024; PTAB Litigation Blog (Jones Day) on the Apr. 6, 2023 stay denial; Texas Lawyer, "Dallas Law Firm Secures $45.4M Verdict In Video Doorbell Patent Trial" (Oct. 24, 2023).

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

Let me pull the actual docket and check the specific attorney names.

I need to verify appearances specific to this docket (4:21-cv-00912), not the related 2020 case. Let me pull the CourtListener docket.

Counsel of Record — Defendants (Vivint Smart Home, Inc. / Vivint, Inc.), No. 4:21-cv-00912-ALM

Scope caveat up front: the case terminated on August 11, 2025 with an order that "this action is dismissed with prejudice in its entirety" (PACER-derived summary, PatSnap case page), so this is a historical appearance list, not a live one. I could not open the raw PACER docket sheet for 4:21-cv-00912 itself; the names below come from litigation-database renderings of that docket plus, for role/firm/address detail, the full E.D. Tex. docket sheet for the companion case SB IP Holdings LLC v. Vivint, Inc., No. 4:20-cv-00886-ALM, which is reproduced verbatim as an exhibit in a PTAB filing (PTAB exhibit, 4:20-cv-00886 docket sheet). Flags on individual entries below where sourcing is weaker.

Defendant-side appearances on the 4:21-cv-00912 docket