SANTA MONICA, Calif. — Lowenstein & Weatherwax LLP is pleased to announce that Nathan Lowenstein has been recognized in the IAM Patent 1000 for the fourth consecutive year.

Mr. Lowenstein was recommended nationally for post-grant proceedings and was also recognized in the guide’s United States: California rankings. The IAM Patent 1000 focuses exclusively on patent practice and identifies leading patent professionals based on extensive market research, including feedback from clients and peers.

Mr. Lowenstein is a founding and co-Managing Partner of Lowenstein & Weatherwax LLP. His practice focuses on representing patent owners in inter partes reviews, reexaminations, Federal Circuit appeals, and district court patent litigation. He has served as lead counsel in hundreds of PTAB proceedings and dozens of Federal Circuit appeals, with particular experience defending patent owners in high-stakes disputes involving complex technologies.

“We are grateful to be recognized again by IAM,” said Lowenstein. “Our firm was built to provide patent owners with elite, focused advocacy in proceedings where the written record, technical precision, and strategic judgment matter enormously. This recognition reflects the strength of our team, the sophistication of the matters we handle, and the trust our clients place in us.”

Lowenstein & Weatherwax has developed a national reputation as a boutique patent litigation firm representing patent owners in IPRs, Federal Circuit appeals, reexaminations, and related patent disputes. The firm combines deep PTAB experience, appellate-level written advocacy, and a lean, partner-led model designed to deliver top-tier representation without large-firm inefficiency.