Polsinelli is pleased to announce that three of its attorneys have been named to the 2026 IAM Global Leaders list, recognizing top intellectual property professionals around the world for their leadership in IP law.

Those honored include:

• Gregory P. Durbin – United States: Colorado
• Arriènne (Angel) M. Lezak – United States: DC Metro Area
• John R. Posthumus – United States: Colorado

The annual IAM Global Leaders list highlights the most accomplished patent attorneys worldwide. To qualify, individuals must first be ranked in the gold tier of the IAM Patent 1000. 

Polsinelli has one of the largest full-service Intellectual Property practices in the nation, with more than 200 attorneys, patent agents, scientists and other professionals. Polsinelli’s Intellectual Property Department is a cross-functional team of attorneys who serve clients’ intellectual property needs both across the U.S. and worldwide. The team synergizes diverse skill sets, crafted by various backgrounds, experience and technical degrees to guide clients through their most complex issues.