Bison Patent Licensing v. Samsung: 8-Patent Wireless Suit Dismissed With Prejudice
Bison Patent Licensing LLC filed suit against Samsung Electronics Co., Ltd. in the Eastern District of Texas asserting eight patents spanning femtocell architecture, UE location estimation, and media DRM. The case closed with prejudice after just 98 days — a timeline that suggests a rapid resolution rather than any merits adjudication.
Eight-patent NPE assertion against Samsung ends in rapid prejudicial dismissal
On April 29, 2025, Bison Patent Licensing LLC — a non-practising entity represented by Kent & Risley LLC — filed an infringement action against Samsung Electronics Co., Ltd. in the Eastern District of Texas (Case No. 2:25-cv-00448). The complaint asserted eight US patents covering femtocell architecture, UMTS UE location via uplink DPCCH and downlink synchronisation channels, multiple range estimation, total flight time ratio pattern matching, location boosting using proximity information, media DRM APIs in hosted architectures, alert generation from detector outputs, and media centre processing upgrades.
The case resolved on August 5, 2025 — just 98 days after filing — when Bison filed a Notice of Voluntary Dismissal with prejudice under Fed. R. Civ. P. 41(a)(1)(A)(i). The Court accepted the notice and formally closed the case, ordering each party to bear its own costs and fees. A dismissal with prejudice is a permanent bar: Bison cannot re-file the same claims against Samsung on these eight patents in any federal court.
The 98-day duration and the with-prejudice designation together suggest the parties reached a private resolution — potentially a licence, covenant not to sue, or settlement — before substantive motion practice commenced. The public record is silent on any financial terms. What is notable is the breadth of the portfolio asserted: eight patents spanning at least four distinct technical domains, consistent with a licensing campaign rather than a targeted product-specific enforcement action.
Filing to Dismissed with Prejudice in 98 days
98 days — well under the E.D. Texas median to resolution for multi-patent NPE suits
Dismissed with prejudice: what the Rule 41 closure means for both parties
Rule 41(a)(1)(A)(i) dismissal with prejudice is a permanent bar
A plaintiff may file a notice of voluntary dismissal under Rule 41(a)(1)(A)(i) before the opposing party serves an answer or a motion for summary judgment. When filed with prejudice, the dismissal operates as a final adjudication on the merits. Bison cannot re-assert these eight patents against Samsung on the same claims in any US federal court — the right of action is permanently extinguished.
Rule 41(a)(1)(A)(i) — with prejudiceBison surrenders re-filing rights — likely in exchange for a private resolution
Accepting a with-prejudice dismissal is a material concession for a patent licensing entity. Bison’s willingness to accept this outcome within 98 days — and to bear its own costs — typically signals that a private commercial resolution was reached. Whether that resolution involved a lump-sum licence, a running royalty, or a covenant not to sue, the public record does not confirm. What is clear is that Bison received no court-ordered relief.
No court-ordered relief to plaintiffSamsung obtains permanent peace on all eight asserted patents
The with-prejudice dismissal gives Samsung a durable litigation shield against Bison on this specific eight-patent portfolio. No adverse finding of infringement, validity, or damages was entered. Samsung’s own costs exposure is resolved without fee-shifting. If a private licence was granted, Samsung’s freedom to operate under these patents is formally secured going forward.
No liability finding — permanent bar on re-filingRapid closure limits precedent but signals active NPE licensing pressure in wireless
The absence of any claim construction, invalidity ruling, or damages determination means no public precedent is established on these patents’ scope or validity. Other wireless OEMs and chipset vendors remain exposed to the same portfolio from Bison. The multi-domain assertion — spanning femtocell, location, and DRM — is consistent with a broad licensing campaign that may continue against other targets in the industry.
No claim construction — portfolio remains live vs. othersFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Bison Patent Licensing LLC | Company | Patent licensing entity (NPE) — holder of US10162944B2 and 7 wireless/location patentsSearch in Eureka ↗ |
| Defendant | Samsung Electronics Co., Ltd. | Company | Samsung Electronics Co., Ltd. — global consumer electronics and wireless device manufacturerSearch in Eureka ↗ |
| Plaintiff counsel | Cortney Alexander | Attorney | Counsel for Bison Patent Licensing LLCSearch in Eureka ↗ |
| Plaintiff law firm | Kent & Risley LLC (Alpharett) | Law Firm | Representing Bison Patent Licensing LLCSearch in Eureka ↗ |
| Defendant counsel | Melissa Richards Smith | Attorney | Counsel for Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | Gillam & Smith LLP | Law Firm | Representing Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The Court’s order is purely administrative — it accepts the plaintiff’s Rule 41(a)(1)(A)(i) notice without any merits adjudication. The phrase ‘DISMISSED WITH PREJUDICE’ is determinative: it forecloses any future refiling of the same claims by Bison against Samsung. The fee-bearing instruction — each party to bear its own costs — is the default Rule 41 position and does not reflect a finding of exceptional case conduct by either side under 35 U.S.C. § 285.
US10162944B2 — Femtocell architecture and wireless location technology portfolio
The eight asserted patents span at least four distinct technical domains. US10162944B2 and US9693333B2 address femtocell and UMTS UE location — core infrastructure technologies underlying LTE and 5G small-cell deployments. US7391808B1 covers alert generation from detector outputs, while US8160609B2 protects library-style media DRM APIs in hosted architectures, relevant to streaming and content protection stacks. US8489122B2 and US8331956B2 address location boosting and multiple range estimation — methods used in assisted-GPS and network-based positioning.
The breadth of this portfolio — spanning radio access network architecture, positioning algorithms, and media rights management — makes it strategically potent against integrated wireless OEMs such as Samsung, which manufactures handsets, base station equipment, and smart media devices. Each patent domain corresponds to a revenue-generating product category, raising the aggregate exposure and complicating a unified invalidity strategy. The portfolio’s application date range (earliest priority suggesting early-to-mid 2000s filings) places these patents in the sweet spot of LTE standardisation — a period during which many foundational wireless techniques were patented by contributors and subsequently acquired by licensing entities.
Should you run an FTO against US10162944B2 and Bison’s wireless portfolio?
Any company designing or selling femtocell access points, LTE/5G handsets, positioning modules, or hosted media DRM systems should assess exposure to this eight-patent portfolio. The with-prejudice dismissal against Samsung does not extinguish the patents — they remain enforceable against any other party. OEMs, chipset vendors, and MVNOs operating in the E.D. Texas jurisdiction are particularly exposed given Bison’s demonstrated willingness to file there.
PatSnap Eureka’s FTO Search Agent can map each of the eight patent numbers against your product architecture, flag overlapping claim elements, and identify prior art for potential IPR petitions — all before a demand letter arrives. Early analysis substantially reduces negotiating costs and informs whether a design-around, licence request, or IPR filing is the optimal response. Start with US10162944B2 and US9693333B2 as the highest-priority femtocell and location claims.
Run a freedom-to-operate analysis on US10162944B2 to assess your product’s exposure
Run FTO in Eureka →Similar NPE wireless patent infringement cases in E.D. Texas
These cases involve NPE assertions of wireless, femtocell, or location-technology patents in the Eastern District of Texas against major OEM defendants.
What this case signals for the wireless technology IP licensing landscape
A rapid with-prejudice exit in E.D. Texas on an 8-patent NPE assertion carries clear implications for other wireless OEMs and licensees.
With-prejudice exits in under 100 days typically signal a private licence was reached
When an NPE voluntarily dismisses with prejudice this early — before any substantive court filings from the defendant — the most commercially rational explanation is a negotiated resolution. Other wireless device manufacturers should treat these eight patents as actively licensed and assess their own exposure accordingly.
Eight-patent multi-domain portfolios are a signature NPE enforcement strategy
Asserting patents across femtocell architecture, location estimation, and media DRM simultaneously increases settlement pressure and complicates a unified invalidity defence. Companies facing similar broad assertions should triage patents by revenue-generating product overlap and prioritise IPR filings on the most commercially threatening claims.
Bison v Samsung — key questions answered
The case was dismissed with prejudice. Bison Patent Licensing filed a voluntary notice of dismissal under Rule 41(a)(1)(A)(i) expressly stating dismissal with prejudice. The Court accepted the notice on August 5, 2025, permanently barring Bison from re-filing the same claims against Samsung on these eight patents.
Bison asserted eight US patents: US10162944B2, US9693333B2, US7391808B1, US8160609B2, US8489122B2, US8331956B2, US8576781B2, and US9693030B2. The patents span femtocell architecture, UMTS UE location, location boosting, range estimation, flight time ratio pattern matching, media DRM APIs, alert generation, and media centre processing upgrades.
The dismissal only protects Samsung. The eight patents remain valid and enforceable against all other parties. Other wireless device manufacturers, chipset vendors, and network operators selling products that may practise these claimed technologies remain exposed to assertion by Bison Patent Licensing or any future assignee of this portfolio.
Bison Patent Licensing was represented by Cortney Alexander of Kent & Risley LLC. Samsung Electronics was represented by Melissa Richards Smith of Gillam & Smith LLP — a prominent East Texas litigation firm regularly engaged by major OEM defendants in NPE cases filed in that district.
The case closed in 98 days from filing to dismissal. This compressed timeline — well before any scheduling order, claim construction, or summary judgment motion would typically be briefed — is consistent with a private commercial resolution such as a licence or settlement. The public record does not disclose any financial terms or licence conditions.
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