Intellectual Property

IP counsel to 2,000+ companies across all industry sectors worldwide

Why Cooley
  • Fully integrated IP litigation, counseling and prosecution practice
  • 6,900+ patent applications filed globally for clients in 2022
  • 3,500+ trademark applications filed globally for clients in 2022
  • 1,500+ domain names recovered through UDRP and Nominet proceedings
  • 1,000+ investor-side and company-side patent due diligence reviews in high-value deals and transactions
  • 500+ trademark, copyright and advertising disputes globally in 2022
  • 475+ patent cases in the last 5 years
  • 300+ PTAB proceedings
  • 30+ Section 337 ITC investigations
  • 30+ patents invalidated in the last two years
  • 10 patent trials in the last 5 years

Cooley Protect

Empowering entrepreneurs and growth companies

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IP lawyers across the US, UK and Europe


Gold-Tier Trademark Firm

World Trademark Review 2022

“Patent Strategy and Management Firm of the Year” Honoree

LMG Life Sciences 2022

2021 Litigation Department of the Year finalist– The American Lawyer

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  • BTI Consulting: “Standout” for IP litigation
  • BTI Consulting: Top firm for client service and value
  • Chambers, Legal 500: Top IP and life sciences practices in the US and UK
  • IAM Patent 1000: Top patent prosecution firm
  • LMG Life Sciences: 2021 “Patent Strategy and Management Firm of the Year” Honoree
  • Managing Intellectual Property: "IP Star" for patent prosecution and litigation, trademark, copyright and PTAB proceedings
  • Managing Intellectual Property: 2021 "Trademark Litigation Firm of the Year" and "IP Transactions Firm of the Year" Honoree
  • US News and World Report: Tier 1 firm for patent law
  • World Trademark Review: Gold tier for trademark law


Group contacts
Ivor Elrifi  Partner New York, Boston
Stephen Smith  Partner Washington, DC, Reston
Brendan Hughes  Partner Washington, DC
Heidi Keefe  Partner Palo Alto
Joseph Drayton  Partner New York
Christopher Hutter  Partner Reston
Mika Reiner Mayer  Partner Palo Alto
Dr. Michelle Rhyu  Partner Palo Alto
Bobby Ghajar  Partner Los Angeles – Santa Monica, Los Angeles – Downtown
Michael Tuscan  Partner Washington, DC
Angela Dunning  Partner Palo Alto
Bill Christiansen  Partner Seattle
Heidi A. Erlacher  Partner in Charge – Boston Boston
Scott Talbot  Partner Reston
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