Allan Bullwinkel

Partner
609 Main Street, Suite 3200 | Houston, TX 77002
Phone: (713) 221-2024
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About Allan Bullwinkel

Allan Bullwinkel focuses on patent disputes involving computer, electrical, and networking technologies in a variety of forums. Clients call on him to enforce intellectual property rights in district court litigations, inter partes review (IPR) proceedings, and Federal Circuit appeals.

With more than a decade of experience in the technical industry, followed by more than a decade of patent litigation practice, Allan understands both the technical details and the legal aspects of a case. Allan’s patent litigation track record includes complex technologies covering cellular networks, fiber-optic networks, IP routing, video streaming, mobile applications, cryptography, pharmaceuticals, and more.

Before earning his law degree, Allan spent over a decade working as a software developer with small start-up companies and large research institutions. He has developed software in numerous programming languages and has led development teams for commercial software products.

Allan began his legal career as a law clerk to the Hon. Leonard Davis at the U.S. District Court for the Eastern District of Texas. In law school, Allan served as the Managing Editor of the Houston Law Review and competed as both a speaker and writer on the school’s Moot Court team. He continues to coach for the UHLC Moot Court team.

Notable Cases
  • Daingean Techs. v. AT&T; Daingean Techs. v. T-Mobile (EDTX) – Allan represents the plaintiff in this patent infringement lawsuit about 5G cellular technologies.
  • Iarnach Techs. v. Charter (EDTX) – Allan represents the plaintiff in this patent infringement lawsuit about fiber optics networks.
  • In re Lamictal Antitrust Litigation, No. 2:12-cv-995 (DNJ) – Allan represents the plaintiffs in this antitrust case involving pharmaceutical patents.
  • Wapp Tech. v. Chase; Wapp Tech. v. Wells Fargo; Wapp Tech. v. Bank of America (EDTX) – Allan and a team of attorneys from HPC represented Wapp in patent infringement litigations about mobile application development. Allan worked primarily on infringement issues, and the cases settled favorably during fact discovery.
  • Lipitor Antitrust Litigation (DNJ) – Allan successfully represented a group of plaintiffs over the purchase of the prescription pharmaceutical Lipitor. The case settled against one defendant for $93 million, with continuing claims against the remaining defendant.
  • Packet Intelligence IPRs (PTAB) –Allan represented the patent owner in a series of inter partes review proceedings regarding computer network traffic and monitoring patents.
    • Telecom Network Solutions v. T-Mobile (EDTX) – Allan and a team of attorneys from HPC and Alavi Anaipakos represented TNS regarding a patent relating to the dynamic allocation of resources in a cellular network. Allan was primarily responsible for infringement issues, and the case settled favorably before trial.
  • Monarch Networking Solutions v. Cisco Systems (EDTX/WDTX) – Allan and a team of attorneys from HPC and Susman Godfrey represented Monarch regarding four patents relating to router technology and IPv6 networks (EDTX matter) and a patent regarding two-factor authentication in networks (WDTX matter). Allan was primarily responsible for infringement issues, and the cases settled favorably before trial.
  • Barkan v. Samsung, Verizon; Barkan v. Sprint; Barkan v. T-Mobile (EDTX) – Allan and a team of attorneys from HPC and Susman Godfrey represented Barkan in patent litigations involving femtocells. Allan was primarily responsible for infringement and validity issues. Each case settled favorably before trial.
  • Verint Systems Inc. v. Barkan (PTAB) – Allan and a team of HPC attorneys represented Dr. Barkan in an inter partes review proceeding involving a patent related to cryptanalysis and cracking GSM-based communications. The Board declined to institute a trial.
  • Red Rock Analytics v. Samsung Electronics (EDTX): Allan and a team of HPC attorneys represented Red Rock Analytics in a patent infringement litigation about calibrating transceivers in mobile devices. Allan worked primarily on validity issues in the case, including work on four different IPRs in which the Board declined to institute a trial. The parties submitted the remaining issues to the Court, and the Court determined that the asserted claims were not invalid.
  • Packet Intelligence LLC v. Cisco Systems, Inc. (EDTX) – Allan and a team of attorneys from HPC and Susman Godfrey represented Packet Intelligence in a patent infringement litigation about network traffic monitoring and classification. Allan was involved with both infringement and validity issues in the case. The parties reached a confidential settlement of the case.
  • Two-Way Media v. Dish Network (DCO) – Allan and a team of attorneys from HPC and Susman Godfrey represented Two-Way Media in a patent infringement litigation about streaming video. Allan was primarily responsible for infringement issues. The parties reached a confidential settlement.
  • Two-Way Media v. AT&T (WDTX) – Allan and a team of attorneys from HPC and Susman Godfrey represented Two-Way Media in a patent infringement litigation about streaming video. Allan assisted with trial preparation and at trial in San Antonio, primarily focusing on infringement issues. The jury rendered a favorable verdict.
Honors & Awards
  • Lawdragon 500 Leading Litigators in America, Patent Litigation, 2023-present
  • Lawdragon 500 Leading Litigators in America, Intellectual Property Litigation, 2025
  • Best Lawyers in America, 2020-present
  • Top 1000 Leading IP Professional in Intellectual Asset Management’s (IAM) Patent 1000, 2024
  • Texas Rising Stars by Thompson Reuters, 2018-2021
Lawdragon Leading Litigators 2025
IAM 1000
Allan Bullwinkel | Best Lawyers 2025

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