Gish

Gish PLLC is an intellectual property litigation boutique with offices in New York and San Francisco. The firm positions itself to compete with larger firms while maintaining a focused, agile approach to complex, high-stakes IP disputes. While no AmLaw or Chambers ranking is available, Gish PLLC's attorneys often have backgrounds from elite Big Law firms.

The firm specializes in high-technology patent litigation across a broad range of technical fields. Their expertise includes computer hardware and software, wireless standards (Wi-Fi, cellular), artificial intelligence, networking, cybersecurity, semiconductors, and medical devices. Gish PLLC also handles pharmaceutical patent litigation, including Hatch-Waxman and BPCIA disputes. The firm's case history reflects this focus, with representations in cases involving cybersecurity (e.g., Skysong Innovations, LLC v. Fortinet, Inc.) and streaming media technologies (e.g., DISH Technologies, LLC et al. v. A Parent Media Co. Inc. et al.).

Gish PLLC primarily operates on the defendant side, representing operating companies facing patent infringement allegations. Out of eight tracked appearances, seven were for defendants, with only one on the plaintiff side. The firm’s public representations include defending major technology companies and startups in federal district courts, the International Trade Commission (ITC), and before the Patent Trial and Appeal Board (PTAB).

Notable engagements include representing Fortinet, Inc. as a defendant in Skysong Innovations, LLC v. Fortinet, Inc. in the Eastern District of Texas, a case involving cybersecurity patents for which a Markman hearing is set for May 2026 and a jury trial for November 2026. The firm also successfully secured the dismissal of a patent infringement lawsuit for Lipotype, invalidating all 20 asserted claims related to diagnostic testing methods under 35 U.S.C. § 101. In another instance, Gish PLLC achieved the dismissal of a patent infringement suit for HopDrive by invalidating seven patents under § 101. Additionally, Andrew Gish notably secured summary judgment invalidating all asserted patent claims in Pi-Net International, Inc. v. JPMorgan Chase & Co. and convinced the Federal Circuit to adopt Google's dispositive claim construction in Google LLC v. Network-1 Technologies, Inc.

The firm maintains an active PTAB practice, adept at both challenging and defending patent validity in Inter Partes Review (IPR) and Post-Grant Review (PGR) proceedings. Examples include successfully representing GAF Materials LLC in an IPR that invalidated all claims of a patent, a decision later affirmed by the Federal Circuit in May 2024. Gish PLLC also secured the institution of IPRs for two patents on behalf of Dayus Register & Grille, Inc.

Key partners in the firm's patent litigation practice include Andrew Gish, who serves as Managing Partner, Ryan Iwahashi, Christopher Gerson, and Josef Schenker. These partners bring extensive experience from previous roles at leading law firms and possess deep technical backgrounds, many holding advanced technical degrees.