Celerity IP & Innovative Sonic v. LG Electronics: Five-Patent 5G Dispute Resolved in 89 Days
Celerity IP, LLC and Innovative Sonic, Ltd. brought a five-patent infringement action against LG Electronics in the Eastern District of Texas, targeting LG’s VELVET 5G devices. The case was jointly dismissed with prejudice in just 89 days — a resolution pace that typically signals a confidential settlement reached before substantive motion practice.
Five-Patent 5G Enforcement Action Ends in Joint Dismissal With Prejudice
On February 23, 2024, Celerity IP, LLC and Innovative Sonic, Ltd. filed a joint infringement action against LG Electronics, Inc. and LG Electronics U.S.A., Inc. in the U.S. District Court for the Eastern District of Texas (Case No. 2:24-cv-00132). The complaint asserted five U.S. patents — US8411626B2, US8472628B2, US8559962B2, US8565128B2, and US8855095B2 — against LG’s VELVET 5G devices, placing the dispute squarely in the wireless communications and mobile device technology space.
The case concluded on May 22, 2024, via a joint Stipulation of Dismissal With Prejudice signed by all parties. The court accepted and acknowledged the stipulation, dismissing all claims and causes of action with prejudice. Critically, each party was ordered to bear its own costs, expenses, and attorneys’ fees — a common feature of negotiated resolutions. Dismissal with prejudice means the plaintiffs cannot refile these specific claims against LG on these patents, rendering the resolution final and binding.
The 89-day resolution timeline is notably short for a five-patent assertion in E.D. Texas, a jurisdiction known for active patent docket management. The joint nature of the stipulation and the brevity of the litigation — no defendant agents or law firms appear on the public record — suggests the parties reached a private agreement, most likely a licensing arrangement or lump-sum settlement, very shortly after filing. The specific financial terms, if any, remain undisclosed in the public record.
Filing to Dismissed with Prejudice in 89 days
89 days — well below the E.D. Tex. median time-to-resolution, suggesting early settlement
Dismissed with prejudice: what the joint stipulation means for both parties
Dismissal with prejudice bars any refiling on these patents against LG
A dismissal with prejudice under Federal Rule of Civil Procedure 41 operates as a final adjudication on the merits. Celerity IP and Innovative Sonic cannot refile infringement claims against LG Electronics or LG Electronics U.S.A. on any of the five asserted patents — US8411626B2, US8472628B2, US8559962B2, US8565128B2, and US8855095B2 — in connection with the VELVET 5G devices. The joint nature of the stipulation confirms mutual agreement.
Rule 41 — final, no refilingPlaintiffs secured a clean exit — likely with undisclosed consideration
By agreeing to dismissal with prejudice, Celerity IP and Innovative Sonic accepted a permanent bar on these specific claims. This is consistent with a licensing deal or lump-sum payment that made continued litigation unnecessary. The patents themselves remain in force against third parties; only LG gains immunity. Each party bearing its own costs suggests neither side extracted a cost-shifting victory, pointing toward a commercially negotiated outcome.
Patents remain enforceable vs. othersLG exits with permanent immunity on all five asserted patents
LG Electronics and LG Electronics U.S.A. secured dismissal with prejudice across all five patent claims, meaning these specific assertions are extinguished permanently. LG never filed a public answer or retained counsel of record, suggesting it moved quickly to resolve the dispute privately. The VELVET 5G product line is now shielded from further claims by these two plaintiffs on these patents, though broader portfolio risk from other parties is unaffected.
Full immunity on five patentsEarly resolution signals licensing-readiness in 5G mobile patent enforcement
Cases filed in E.D. Texas by NPE-style plaintiffs asserting clusters of wireless communication patents against named device products frequently resolve early when the defendant calculates that settlement costs are lower than litigation costs. The 89-day timeline here is consistent with that dynamic. Other mobile device OEMs holding similar 5G patent exposure should treat this outcome as a signal that Celerity IP and Innovative Sonic are active enforcers willing to settle — but will file again against others.
NPE enforcement — settlement-likely patternFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Celerity IP, LLC | Company | Patent licensing entities — holders of US8411626B2 and four related wireless communication patentsSearch in Eureka ↗ |
| Co-Plaintiff | Innovative Sonic, Ltd. | Company | Search in Eureka ↗ |
| Defendant | LG Electronics, Inc. | Company | LG Electronics, Inc. and LG Electronics U.S.A., Inc. — global consumer electronics and mobile device manufacturerSearch in Eureka ↗ |
| Co-Defendant | Lg Electronics U.S.A., Inc. | Company | Search in Eureka ↗ |
| Plaintiff counsel | Jamie H. McDole | Attorney | Counsel for Celerity IP, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Robert Christopher Bunt | Attorney | Counsel for Celerity IP, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Parker Bunt & Ainsworth PC | Law Firm | Representing Celerity IP, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Winstead PC(Dallas) | Law Firm | Representing Celerity IP, LLCSearch in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order closely mirrors the language of the joint stipulation, indicating no independent judicial findings on the merits of infringement or validity. The phrase ‘all claims and causes of action… are DISMISSED WITH PREJUDICE’ forecloses any future assertion by these plaintiffs against these defendants on the five patents. The ‘DENIED AS MOOT’ language for all pending relief requests confirms no substantive rulings were made prior to resolution, consistent with an early pre-answer settlement.
US8411626B2 and four related wireless communication patents
The five asserted patents — US8411626B2, US8472628B2, US8559962B2, US8565128B2, and US8855095B2 — originate from application numbers filed between 2009 and 2011, a period coinciding with the development of LTE and early 5G-precursor wireless standards. Their assertion against the VELVET 5G device suggests the patents cover wireless communication protocols, signal processing, or resource management functions relevant to 3GPP-compliant mobile hardware. All five carry B2 grant designations, indicating they survived at least one examination cycle.
Patents held by Innovative Sonic, Ltd. and exclusively licensed or co-asserted by Celerity IP, LLC represent a category of standard-essential or standards-adjacent wireless IP that is frequently deployed in licensing campaigns against mobile OEMs. The breadth of a five-patent assertion against a single named product line suggests the portfolio is mapped to specific technical features of 5G-capable handsets. Any manufacturer, chipset supplier, or network equipment vendor operating in the 5G space should treat this portfolio as an active enforcement asset until the patents expire or are invalidated.
Should you run an FTO against US8411626B2 and the four co-asserted patents?
If your organisation designs, manufactures, imports, or sells 5G-enabled mobile devices or components — particularly handsets, modems, or baseband chipsets — these five patents warrant a freedom-to-operate review. Celerity IP and Innovative Sonic have demonstrated willingness to file and settle quickly in E.D. Texas, meaning enforcement risk is real and the cost of ignoring it may exceed the cost of a pre-emptive clearance analysis.
PatSnap Eureka’s FTO Search Agent can map the claim scope of US8411626B2, US8472628B2, US8559962B2, US8565128B2, and US8855095B2 against your specific product architecture, flag any claim-level overlap, and surface prior art relevant to validity challenges — all within a single workflow. Use Eureka to benchmark your exposure before your next product launch or licensing negotiation.
Run a freedom-to-operate analysis on US8411626B2 to assess your product’s exposure
Run FTO in Eureka →Similar 5G wireless patent infringement cases in E.D. Texas
Explore comparable wireless communication and 5G patent assertions filed in the Eastern District of Texas, including NPE-led multi-patent campaigns against mobile OEMs.
What this case signals for the 5G mobile device IP landscape
A five-patent assertion resolved in 89 days in E.D. Texas reveals clear enforcement strategy and licensing intent by the patent holders.
Cluster assertions of 5G patents against named products are built to settle fast
Filing five patents simultaneously against a specific named product — LG’s VELVET 5G — is a common NPE tactic designed to maximize settlement pressure while minimizing litigation risk. The rapid dismissal with prejudice in this case is consistent with a licensing payment. Mobile OEMs should monitor Celerity IP and Innovative Sonic for follow-on filings against similar device lines.
E.D. Texas remains the preferred venue for 5G wireless patent enforcement
The Eastern District of Texas continues to attract wireless communication patent cases due to its established case management practices and plaintiff-friendly scheduling. Companies with 5G-enabled products distributed in Texas face continued filing risk. An FTO analysis against the five asserted patents — and the assignees’ broader portfolios — is advisable for any OEM shipping comparable devices.
Celerity v LG — key questions answered
The case was dismissed with prejudice on May 22, 2024, via a joint stipulation signed by all parties. Celerity IP, LLC and Innovative Sonic, Ltd. had asserted five wireless communication patents against LG Electronics’ VELVET 5G devices. The court accepted the stipulation and ordered each party to bear its own costs, suggesting a private settlement was reached within 89 days of filing.
The plaintiffs asserted five U.S. patents: US8411626B2, US8472628B2, US8559962B2, US8565128B2, and US8855095B2. All five originated from patent applications filed between 2009 and 2011 and relate to wireless communication technologies relevant to 5G-capable mobile devices, including LG’s VELVET 5G product line.
Dismissal with prejudice means all five patent infringement claims brought by Celerity IP and Innovative Sonic against LG Electronics and LG Electronics U.S.A. are permanently extinguished. The plaintiffs cannot refile these specific claims against LG on these patents. However, the patents remain valid and enforceable against other third parties not party to this stipulation.
The 89-day resolution is consistent with an early private settlement, possibly a patent license or lump-sum payment. The joint stipulation, absence of any defendant counsel on the public record, and the ‘each party bears own costs’ term all suggest the parties reached a commercial agreement before substantive motion practice or claim construction began — a pattern common in NPE-led enforcement actions in E.D. Texas.
Based on the public record, both entities appear to function as patent licensing or assertion entities. Innovative Sonic, Ltd. is the apparent originating rights holder of the asserted wireless communication patents, while Celerity IP, LLC is the co-plaintiff, likely holding an exclusive license or enforcement rights. This structure is consistent with NPE licensing campaigns targeting mobile device manufacturers in the 5G space.
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