Defendant
17 cases as defendant.
Proxense, LLC is a privately held non-practicing entity (NPE) and a former operating company that was formally incorporated in Delaware in September 2005, evolving from a "limited venture" founded in 2001. John J. Giobbi is identified as the company's founder and CEO, and a prolific inventor with approximately 75 patent assets held by Proxense, LLC, most listing him as a named inventor.
Proxense, LLC's asserted patent portfolio primarily focuses on biometric authentication and wireless communication technology. This includes systems and methods for secure, automatic user authentication to access data or applications, often utilizing radio frequency identification (RFID) and electronic authentication, as well as personal digital keys (PDKs) for controlling access to computing resources. The company previously developed ProxNET, a wireless healthcare system for hands-free sign-on/off and real-time location services.
With 7 cases as plaintiff and 2 as defendant, Proxense, LLC operates as a patent assertion entity. Their litigation strategy primarily involves asserting their patent portfolio against major technology companies. Most of Proxense, LLC's plaintiff cases are filed in the Western District of Texas, a venue known for patentee-friendly litigation. The defendant cases against Proxense, LLC were initiated by Intel Corporation and Unified Patents, the latter being an organization that challenges patents asserted by NPEs.
Notable cases include Proxense, LLC's infringement campaigns against prominent technology companies such as Intel, Apple, LG Electronics, Google LLC, Microsoft, and Samsung. Proxense has previously settled disputes with Samsung, Google, and Intel, while litigation against Apple and Microsoft remains active or stayed. Several of Proxense's patents, including U.S. Patent No. 8,886,954 and 8,352,730, covering biometric authentication and wireless communication, have been challenged at the Patent Trial and Appeal Board (PTAB).
Apple Inc. petitioned for inter partes review of claims 1-20 of US 9,049,188 B1. The PTAB instituted review, and the proceeding remained active as of April 2026, with a Petitioner Reply filed March 23, 2026.
An Inter Partes Review initiated by Intel Corporation against Proxense, LLC concerning patent 9265043, which was instituted and subsequently terminated on the same date.
Apple petitioned for inter partes review of US 8,646,042. The Board issued a final written decision, the proceeding terminated on August 4, 2025, and the matter is on appeal.
Inter partes review of U.S. 8,886,954 filed by Apple Inc. Reported status: final written decision.
Inter partes review of U.S. 8,886,954 filed by Microsoft Corporation. Reported status: final written decision.
Microsoft petitioned for inter partes review of U.S. 9,298,905 (Application 14/521,982). The Board granted Patent Owner Proxense's request for adverse judgment before institution, terminating the proceeding on November 12, 2024.
Microsoft petitioned for inter partes review of US 8,646,042. The Board found the challenged claims unpatentable as obvious; oral hearing held May 13, 2025.
Inter partes review of U.S. 8,886,954 filed by Google LLC (caption also names Apple Inc.). Instituted July 24, 2024; Google terminated on settlement Feb. 5, 2025; listed as a final written decision. It is among the originating PTAB cases in Proxense's Federal Circuit appeal.
Google petitioned for inter partes review of U.S. 9,298,905. The Board granted Patent Owner Proxense's request for adverse judgment, terminating the proceeding on November 1, 2024.
Microsoft petitioned for inter partes review of US 9,679,289. The Board issued a final written decision on July 17, 2025 holding all challenged claims 1–20 unpatentable under 35 U.S.C. § 318(a).
Microsoft petitioned for inter partes review of claims 1-20 of the '960 patent. A final written decision issued and the proceeding is now on appeal to the Federal Circuit.
Samsung petitioned for inter partes review of U.S. Patent No. 9,235,700 B1. The proceeding was consolidated for hearing with IPR2021-01438 and terminated by settlement without a confirmed final written decision cancelling the '700 patent.
Samsung Electronics America, Inc. petitioned for inter partes review of US 9,049,188 B1. The proceeding was consolidated for hearing with IPR2021-01439 on US 9,235,700; oral hearing was held November 29, 2022, and it was terminated by settlement without a final written decision on validity.
Google petitioned for inter partes review of US 9,679,289. The Board instituted review on Nov. 18, 2024; a final written decision was entered, and the proceeding was terminated as to Google on Feb. 5, 2025, leaving Apple as sole petitioner in the joined proceeding.
Apple filed a copy of Google's petition and a motion for joinder in an inter partes review of US 9,679,289. Joinder was granted with IPR2024-00783, and a final written decision was reached.
Google petitioned for inter partes review of US 8,646,042. The Board issued a final written decision.
Google petitioned for inter partes review challenging the '960 patent. The proceeding was terminated by settlement.