Proxense, LLC v. Apple

Proxense, LLC, identified as a non-practicing entity (NPE) and former operating company, initiated a multi-patent infringement lawsuit against Apple, Inc., a prominent technology operating company, in March 2024. The lawsuit targets multiple Apple products, notably including the Apple Vision Pro mixed-reality device, making this potentially the first patent infringement complaint to name the Vision Pro among the accused devices. The allegations center on Apple's use of optical authentication technologies and wireless communication functionalities, specifically targeting devices that support Wi-Fi 6 and later wireless standards. The primary patent at issue in this case, US Patent 8,036,152, generally relates to a system and method for efficiently managing power in wireless devices by using a timer to switch a wireless transceiver between an "active" and "sleep" mode based on time slot assignments. This case is part of a broader enforcement campaign by Proxense, which has seen settlements with other major technology companies like Samsung and Google.

The litigation is proceeding in the Western District of Texas, Waco Division, and is assigned to Judge Alan D. Albright. This venue has historically been a significant forum for patent disputes, largely due to Judge Albright's reputation for managing patent dockets efficiently and setting relatively quick trial timelines. Although the Western District of Texas implemented district-wide random assignment in 2022, which somewhat reduced the certainty of cases landing before Judge Albright, he remains a key figure in patent litigation, and the district continues to be an important venue. The case is particularly notable due to the involvement of the Apple Vision Pro and the ongoing parallel Patent Trial and Appeal Board (PTAB) proceedings, where Apple and Microsoft have filed inter partes reviews (IPRs) challenging the validity of Proxense's asserted patents, creating a complex interplay between district court litigation and administrative patent challenges.

The patent infringement lawsuit Proxense, LLC v. Apple (6:24-cv-00143) was filed on March 18, 2024, in the U.S. District Court for the Western District of Texas and assigned to Judge Alan D. Albright. The complaint alleges infringement of multiple patents, including U.S. Patent No. 8,036,152, by various Apple products, notably the Apple Vision Pro.

Here's a chronological summary of the key legal developments and outcomes:

Filing & Initial Pleadings:

• 2024-03-18: Proxense, LLC filed its multi-patent infringement complaint against Apple Inc. in the Western District of Texas.
• 2024-03-21: Apple Inc. was served with the summons. Apple's answer was due by April 11, 2024.
• No information about Apple's answer or counterclaims being filed by the deadline has been found, suggesting a pre-answer motion or agreement for an extension.

Pre-trial motions of substance:

• Early 2024 (before April 7, 2026): The district court litigation against Apple was stayed. While the specific motion and order granting the stay are not yet identified, docket entries confirm that Proxense filed a "Plaintiff's Opposed Motion to Lift Stay," and Apple filed an "Opposition to Proxense's Motion to Lift the Stay." This indicates the case remains stayed as of July 2026.
• Pre-2025: Judge Albright denied an earlier motion by Apple to transfer an unspecified Proxense case out of the Western District of Texas, citing the inconvenience to a defendant's witnesses is mitigated if they can perform duties from a local office. While not explicitly tied to the 6:24-cv-00143 case, it reflects a relevant pre-trial motion strategy employed by Apple in Proxense litigation before Judge Albright.

Claim construction (Markman) outcomes:

• No specific Markman order for patent 8,036,152 has been identified in the Proxense v. Apple (6:24-cv-00143) case.
• However, in other related proceedings, the Patent Trial and Appeal Board (PTAB) in IPR2024-00783 and IPR2024-00782 referred to a District Court's claim construction order from Proxense, LLC v. [[Samsung Electronics Co., Ltd.](/litigations/by-plaintiff/Samsung%20Electronics%20Co.%2C%20Ltd.) et al.](/litigations/by-plaintiff/Samsung%20Electronics%20Co.%2C%20Ltd.%20et%20al.) (6:21-cv-00210-ADA, W.D. Tex., Waco Div.) dated December 28, 2022. Proxense had specifically requested that the District Court maintain its construction of "hybrid device" in Proxense v. Apple.
• Additionally, the PTAB in IPR2024-00573 and IPR2024-00407 has construed claims and stated it would rely on and import those constructions for related terms.

Discovery milestones:

• An "Agreed Joint Motion to Amend Scheduling Order" (Docket No. 38) was filed in Proxense, LLC v. Apple Inc., Case No. 6-24-cv-00143. The specifics of the amended schedule or the original schedule are not detailed in the available information.

Trial events, verdict, and post-trial motions:

• The case is currently stayed, so no trial has occurred.

Settlement, dismissal, judgment, or appeal:

• The case remains active but stayed.
• In Proxense's broader litigation campaign, it has settled disputes with Samsung, Google (January 24, 2025), and Intel (March 24, 2026).

Parallel PTAB IPR/PGR proceedings:

• IPR2024-01333: Filed by Apple Inc. against Proxense, LLC on August 22, 2024, challenging claims 1-6, 8-17 of U.S. Patent No. 8,352,730. The trial in the parallel district court litigation for this patent was scheduled for December 2025.
• Ongoing Federal Circuit Appeal (as of 2026-04-07): Proxense has appealed to the United States Court of Appeals for the Federal Circuit, challenging PTAB's final written determinations in IPR2024-00233, IPR2024-01334, and IPR2024-00846, which declared claims 1-7, 10, 12-19, and 22-27 of U.S. Patent No. 8,886,954 unpatentable. Proxense argues that the PTAB improperly stayed a parallel ex parte reexamination (EPR) that was affirming patentability and subsequently quashed the examiner's positive determination. Apple is an appellee in this consolidated appeal.
• 2025-12-03: The USPTO's Central Reexamination Unit (CRU) upheld the validity of U.S. Patent No. 8,352,730 (the subject of IPR2024-01333) after amended claims were found patentable. This was considered a significant win for Proxense, as the patent withstood challenges based on key prior art. This decision could also bolster Proxense's request for Director review regarding the PTAB's decision on U.S. Patent No. 8,886,954.
• No specific IPR or PGR proceedings directly challenging U.S. Patent No. 8,036,152 in the context of Proxense v. Apple (6:24-cv-00143) have been identified in the search results. While the patent is at issue in the district court case and mentioned in other Proxense litigations, its status in PTAB proceedings remains unclear.

Proxense, LLC is represented by the following counsel of record:

• David L. Hecht (Lead Counsel)

  • Firm: Hecht Partners LLP, with offices in New York, NY (Headquarters), Los Angeles, CA, Minneapolis, MN, and Austin, TX.
  • Experience: Mr. Hecht is the firm's founder and co-managing partner, recognized as a "Legal Lion" by Law360. He is a trained electrical and computer engineer and registered patent attorney. He has extensive experience in intellectual property and patent litigation, having appeared in dozens of patent-related matters for major companies like Samsung, Raytheon, Huawei, and MediaTek. He has tried numerous District Court and International Trade Commission (ITC) cases to verdict, including involvement in Apple v. Samsung and securing the first-ever exclusion order against Apple in the ITC. He is noted as co-lead counsel for Proxense LLC, alongside Susman Godfrey, in patent infringement cases against Microsoft and Apple concerning "passwordless" authentication technology in the Western District of Texas.

• Brian D. Melton (Lead Counsel)

  • Firm: Susman Godfrey L.L.P., with offices in Houston, TX (Headquarters), Los Angeles, CA, New York, NY, and Seattle, WA.
  • Experience: Mr. Melton is a nationally recognized lead trial lawyer and sits on the Executive Committee at Susman Godfrey. He has a strong record of winning "bet-the-company" cases for both plaintiffs and defendants. His patent litigation experience includes successfully settling a patent case for Proxense against Samsung on the first day of trial, securing 100% favorable Markman rulings, and defeating all summary judgment motions. The technology in that case involved biometric authentication on mobile-pay applications.

• Lear Jiang (Lead Counsel)

  • Firm: Susman Godfrey L.L.P., with offices in Houston, TX (Headquarters), Los Angeles, CA, New York, NY, and Seattle, WA.
  • Experience: Mr. Jiang represents Proxense, LLC against Google, Microsoft, and Apple in patent infringement litigations in the Western District of Texas, involving "passwordless" sign-in technology and biometric authentication. His work for Proxense includes defeating motions to transfer cases and achieving 100% favorable rulings on patent claim construction. He also helped secure favorable judgments for Proxense in litigation against Samsung related to mobile payment technology, including a rare plaintiff-side win on summary judgment.

• Elizabeth L. DeRieux (Local Counsel)

  • Firm: Capshaw DeRieux, L.L.P., Gladewater, TX.
  • Experience: Ms. DeRieux is a partner at Capshaw DeRieux, L.L.P., a litigation boutique based in Gladewater, Texas, which often serves as local counsel in patent-heavy dockets in the Eastern and Western Districts of Texas. Her federal practice includes intellectual property and commercial litigation. She has been recognized by Super Lawyers for her work in intellectual property and business litigation.

• S. Calvin Capshaw (Local Counsel)

  • Firm: Capshaw DeRieux, L.L.P., Gladewater, TX.
  • Experience: Mr. Capshaw is a founding partner of Capshaw DeRieux, L.L.P., whose practice primarily involves commercial litigation, patent litigation, and federal court litigation. He is admitted to practice before the U.S. Court of Appeals for the Federal Circuit and has been recognized by Super Lawyers for intellectual property and business litigation.

Here is the counsel of record representing Apple in Proxense, LLC v. Apple:

Finnegan, Henderson, Farabow, Garrett & Dunner LLP

• Erika Arner - Lead Counsel
  • Firm & Office Location: Finnegan, Henderson, Farabow, Garrett & Dunner LLP, Washington D.C.
  • Experience: Ms. Arner is a partner at Finnegan and has significant experience representing clients in patent litigation before district courts and the Federal Circuit, as well as in PTAB proceedings. She is listed as representing Apple Inc. in a Federal Circuit appeal related to Proxense.
• Kara Specht - Counsel
  • Firm & Office Location: Finnegan, Henderson, Farabow, Garrett & Dunner LLP, Washington D.C.
  • Experience: Ms. Specht is an attorney at Finnegan and is also listed as representing Apple Inc. in a Federal Circuit appeal related to Proxense. Her practice focuses on patent litigation.
• Cory Bell - Counsel
  • Firm & Office Location: Finnegan, Henderson, Farabow, Garrett & Dunner LLP, Washington D.C.
  • Experience: Mr. Bell is an attorney at Finnegan and is listed as representing Apple Inc. in a Federal Circuit appeal related to Proxense. His experience includes patent litigation and appellate matters.
• Safiya Aguilar - Counsel
  • Firm & Office Location: Finnegan, Henderson, Farabow, Garrett & Dunner LLP, Washington D.C.
  • Experience: Ms. Aguilar is an attorney at Finnegan and is listed as representing Apple Inc. in a Federal Circuit appeal related to Proxense.
• Shawn Chang - Counsel
  • Firm & Office Location: Finnegan, Henderson, Farabow, Garrett & Dunner LLP, Washington D.C.
  • Experience: Mr. Chang is an attorney at Finnegan and is listed as representing Apple Inc. in a Federal Circuit appeal related to Proxense. His practice includes patent litigation.

Duane Morris LLP

• Philip W. Woo - Counsel
  • Firm & Office Location: Duane Morris LLP, San Francisco, CA.
  • Experience: Mr. Woo is a partner at Duane Morris with extensive experience in patent litigation, particularly in the technology sector. He is listed as representing Apple Inc. in a Federal Circuit appeal related to Proxense.
• D. Stuart Bartow - Counsel
  • Firm & Office Location: Duane Morris LLP, San Diego, CA.
  • Experience: Mr. Bartow is a partner at Duane Morris and his practice focuses on intellectual property litigation. He is listed as representing Apple Inc. in a Federal Circuit appeal related to Proxense.
• Monte T. Squire - Counsel
  • Firm & Office Location: Duane Morris LLP, Houston, TX.
  • Experience: Mr. Squire is a partner at Duane Morris with experience in intellectual property and complex commercial litigation. He is listed as representing Apple Inc. in a Federal Circuit appeal related to Proxense.
• Paul Belnap - Counsel
  • Firm & Office Location: Duane Morris LLP, San Diego, CA.
  • Experience: Mr. Belnap is an attorney at Duane Morris specializing in intellectual property litigation. He is listed as representing Apple Inc. in a Federal Circuit appeal related to Proxense.

Pro Hac Vice Appearances (Firm not definitively identified from initial search for all)

• Martin M. Ellison - Admitted Pro Hac Vice
  • Firm & Office Location: Firm not explicitly stated in the provided search results for this case.
  • Experience: Granted motion to appear pro hac vice for Apple Inc..
• Jessica Hannah - Admitted Pro Hac Vice
  • Firm & Office Location: Firm not explicitly stated in the provided search results for this case.
  • Experience: Granted motion to appear pro hac vice for Apple Inc..
• Peter Maggiore - Admitted Pro Hac Vice
  • Firm & Office Location: Firm not explicitly stated in the provided search results for this case.
  • Experience: Granted motion to appear pro hac vice for Apple Inc..