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Provided by Polsinelli PC

The Polsinelli Intellectual Property Department is a cross-functional group organized to service all our client’s intellectual property needs in a variety of industries. Our attorneys handle the most complex issues facing technology and high tech companies, bioscience and life sciences companies, animal science, medical device, pharmaceutical, chemical, software and business methods and any of a variety of other high tech industries.

The Department currently has more than 160 attorneys, patent agents, scientists and other professionals in nine distinct practice groups, constituting one of the largest IP practices in the nation. The Department also holds more than 90 technical degrees, including more than 20 Ph.D.'s.

Recent rankings include:

Nationally ranked in Tier 1 for Patent Law, Trademark Law, Technology Law and Litigation – Intellectual Property in U.S. News and World Report’s 2022 “Best Law Firms.” 

Nationally ranked as a Leader in IP Litigation in BTI Consulting Group's 2022 Litigation Outlook report.

Nationally ranked in patent prosecution in the 2021 IAM Patent 1000.

Included among the top 1% in multiple categories in Patexia's Intelligence Reports:

  • ​Patent Prosecution, 2022
  • Patent Litigation, 2022
  • CAFC, 2021
  • ANDA (Hatch-Waxman Litigation)
  • IPR, 2021
  • Trademark, 2021

Included on the following Juristat lists (all 2021):

  • "Firms with the Most Applications in Front of Difficult Examiners"
  • "24 Firms with the Best Track Record Against Difficult Examiners" 
  • "Top Patent Firms"

Ranked Lawyers at
Polsinelli PC

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Intellectual Property

John R Posthumus
John R Posthumus
Senior Statespeople
Gregory P. Durbin
Gregory P. Durbin
Band 3


Provided by Polsinelli PC