Gary S. Peterson

Gary S. Peterson — Patent Litigation Practice Summary

Specialty / focus areas. Peterson is a registered patent attorney whose practice spans patent prosecution, litigation, and appeals, with a stated emphasis on patents and a background in chemistry (B.S., Caltech). His firm bio lists clients in biotechnology, pharmaceuticals, manufacturing, contracting, oil and gas, and insurance, and Tomlinson McKinstry's prosecution portfolio is concentrated in mechanical engineering and oilfield equipment — Kerr Machine Co. alone accounts for 44 of the firm's issued patents. That aligns with the tracked matter, Unified Patents v. Kerr Machine Co., which involves Kerr's high-pressure plunger-pump / fluid-end patents.

Side preference. The single tracked appearance is on the defendant/patent-owner side (1 defendant, 0 plaintiff), and web-sourced descriptions confirm he primarily defends operating companies and manufacturers — including defending a sporting goods maker's patent against a validity challenge and representing oilfield clients as both plaintiff and defense counsel over his career.

Firm context. He is Of Counsel at Tomlinson McKinstry, P.C. in Oklahoma City, where he has long handled IP and business/complex litigation; the firm's USPTO records show his practitioner registration (Reg. No. 28891). Directory sources also tie him to earlier firms including Pray, Walker, Jackman, Williamson & Marlar (Tulsa) and an earlier patent firm partnership, though those historical details are from secondary directories. He is distinct from another registered practitioner, Gary Earle Peterson (Reg. No. 52121) of Idaho.

Notable cases / outcomes. His firm bio reports a Federal Circuit affirmation of a jury verdict of validity and infringement for an oilfield service client, with follow-on injunctions and license agreements, and a settled validity challenge in which the patent owner prevailed at the Federal Circuit. The tracked Unified Patents v. Kerr Machine matter is part of a broader Kerr Machine IPR/PGR campaign — Unified Patents and competitors (e.g., SPM Oil & Gas, GD Energy Products) have filed multiple PTAB petitions against Kerr's fluid-end patents — so Peterson's tracked appearance indicates regular PTAB / IPR exposure defending a patent owner, though I could not independently verify the specific docket or his filings in the companion proceedings within the search limits.

Bar / education. B.S. Chemistry, Caltech (1974, with honors); J.D., University of Colorado (1977), Order of the Coif; admitted Colorado (1977) and Oklahoma (1978); registered before the USPTO; admitted to the Tenth and Federal Circuits and the U.S. Supreme Court.