About Brianna

Brianna focuses her practice on life sciences patent litigation, including Hatch-Waxman litigation and biologics litigation under the Biologics Price Competition and Innovation Act (BPCIA). Brianna has handled numerous aspects of complex patent litigation from due diligence through trial, including pre-suit due diligence, fact and expert discovery, taking and defending depositions, claim construction, briefing and arguing dispositive motions, and direct examination of witnesses at trial. She also has experience drafting appellate briefing submitted to the US Court of Appeals for the Federal Circuit.

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Experience

Cooley Wins Trial on Patent Interference for RSB Spine

Cooley Wins Trial on Patent Interference for RSB Spine

August 28, 2025

A Cooley team secured a finding of no interference-in-fact for client RSB Spine following a bench trial before Judge Richard G. Andrews of the US District Court for the District of Delaware against DePuy Synthes. The trial related to DePuy Synthes’ November 2019 counterclaim for a declaration of interference between RSB’s US Pat. No. 9,713,537 and DePuy’s US Pat. No. 7,846,207.

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Related contacts

Reuben Chen
Partner, Palo Alto
Dustin Knight
Associate, Washington, DC
Juan Pablo González
Associate, Palo Alto
Brianna (Chamberlin) Patterson
Associate
Cole Merritt
Associate, Washington, DC

Related Practices & Industries

Trials
Intellectual Property Litigation

Samsung Bioepis Defeats Emergency Motion for Injunction

Samsung Bioepis Defeats Emergency Motion for Injunction

June 18, 2024

Cooley successfully defeated an emergency motion for injunction for Samsung in Alexion Pharmaceuticals, Inc. et al. v. Samsung Bioepis Co. Ltd. before District Judge Gregory Williams in ongoing Biologics Price Competition and Innovation Act (BPCIA) litigation for its proposed biosimilar Soliris, which is used to treat blood disorders.

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Related contacts

Dr. Michelle Rhyu
Senior Counsel, Palo Alto
Daniel Knauss
Partner, Palo Alto
Jonathan Davies
Partner, Washington, DC
Orion Armon
Partner, Colorado
Brianna (Chamberlin) Patterson
Associate
HanByul Chang
Associate, Palo Alto

Related Practices & Industries

Intellectual Property Litigation
Patent Office Litigation
Life Sciences IP Litigation

Admissions and credentials

Minnesota

Rankings and accolades

Managing Intellectual Property: Rising Star (2024 – 2025)

Best Lawyers: Ones to Watch (2022)

Minnesota Lawyers: Up & Coming Attorneys (2022)

Minnesota State Bar Association: North Star Lawyers (2022)

Twin Cities Business: Notable Emerging Stars in Law (2022)

Memberships and affiliations

Minnesota Disability Bar Association

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