Katz

Firm overview. Katz PLLC, operating as "The Katz Firm," is a Dallas, Texas-based IP litigation boutique founded by Robert D. "Bob" Katz. It is a small practice — the Texas Bar's statutory profile lists the firm as a solo practice — offering "big firm expertise with small firm efficiency," per the firm's own site. The firm is not AmLaw- or Chambers-ranked; the Chambers-recognized "Robert Katz" (Banner & Witcoff, Washington DC) is a different lawyer and should not be conflated with this firm.

IP litigation specialty and side preference. The firm concentrates on patent, trademark, copyright, and trade secret litigation, with a technology focus on software and electronics: Internet technologies, VoIP, cellular phones, computer software, semiconductor fabrication, business methods, multimedia receivers, and computer components (per katzfirm.com and the founder's bio). The tracked docket shows one appearance, on the plaintiff/petitioner side (TankLogix, LLC v. SitePro, Inc.), consistent with the firm's stated model of contingency and alternative-fee patent enforcement for patent owners and inventors. The firm also states it has defended clients against infringement claims, so it works both sides, but its public docket skews toward patent-holder enforcement.

Notable cases. The principal tracked matter is TankLogix, LLC v. SitePro, Inc., an oil-and-gas remote fluid-handling/IIoT patent dispute in the Western District of Texas (SitePro, Inc. v. TankLogix, LLC, No. 6:24-cv-00643, Judge Xavier Rodriguez), where Katz represents TankLogix, plus a parallel wave of PTAB challenges. Historical appearances include Brite Smart Corp. v. Google Inc. (E.D. Tex. 2:14-cv-760), where Katz appeared for the patent-owner plaintiff, and a 2011 appearance in VirnetX Inc. v. Apple Inc. (E.D. Tex. 6:10-cv-417). I could not verify trial verdicts or Federal Circuit appeals from public sources; no such results should be assumed.

PTAB / IPR practice. Katz PLLC has a meaningful, if modest-scale, PTAB practice. Katz has served as lead counsel in CBMs and IPRs (e.g., CBM2016-00008 involving Google and Brite Smart; IPR2020-01272), and in 2025 filed a slate of petitions against SitePro — IPR2025-00648 through -00652 and PGR2025-00060. At least one of those, IPR2025-00649 (challenging U.S. Patent No. 9,342,078), was denied by a Director's discretionary decision in July 2025. This is a solo/small-firm docket, not a high-volume IPR practice.

Key practitioners. Robert D. "Bob" Katz is the founder and lead litigator (SMU Dedman School of Law, 2006; Texas bar 2007; USPTO Reg. No. 60,704; previously an IP litigator at Jones Day's Dallas office and co-founder of Patton Roberts' Dallas IP office; ~20 years' technical background in electronics and software). Gregory J. Gonsalves appears as co-counsel in the tracked TankLogix matter, but I could not independently verify his firm affiliation or credentials through public sources.