Experience

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
Cole Merritt
Associate, Washington, DC

Related Practices & Industries

Cooley Secures Dismissal of Trade Secret Battle for Mango Technologies

September 17, 2024

Cooley successfully secured a dismissal for Mango Technologies, the market leader in the $80 billion market for productivity software, in a trade secret litigation brought by Nifty Technologies.

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Related contacts

Adam Gershenson
Partner, Boston
Summer Wynn
Partner, San Diego
Reuben Chen
Partner, Palo Alto
Lowell Mead
Partner, Palo Alto
Hanna Evensen
Associate, Boston
Andy Zachrich
Associate, San Francisco

Related Practices & Industries

Absolute Software Announces $870 Million Acquisition by Crosspoint Capital

May 15, 2023

Cooley advised Absolute Software, a data risk management solutions and endpoint security provider, on its acquisition by Crosspoint Capital for approximately $870 million, inclusive of debt.

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Related contacts

Steve Tonsfeldt
Partner, Palo Alto
Rishab Kumar
Partner, Palo Alto
Milson Yu
Partner, Palo Alto
John McKenna
Partner, Palo Alto
Natalie D. Vernon
Associate, Colorado
Queenie Chen
Associate, Palo Alto
David Silverman
Partner, New York
Tracy Rubin
Partner, Palo Alto
Megan Browdie
Partner, Washington, DC
Patrick Flanagan
Partner, New York
Xander Lee
Partner, Santa Monica
Barbara Mirza
Partner, Santa Monica
Ross Eberly
Partner, Santa Monica
Annie Froehlich
Partner, Washington, DC
Christopher Kimball
Partner, Washington, DC
Reuben Chen
Partner, Palo Alto

Related Practices & Industries

CoolIT Protects Key Patent at PTAB

September 1, 2020

In August 2020, Cooley convinced a panel of judges at the PTAB to protect a key patent for CoolIT, a leader in data center cooling. A three-judge panel upheld the validity of all challenged claims while adopting arguments Cooley advanced against Petitioner’s expert and his proposed prior art combination.

Related contacts

Reuben Chen
Partner, Palo Alto
Heidi Keefe
Partner, Palo Alto
Daniel Knauss
Partner, Palo Alto
Dustin Knight
Associate, Washington, DC

Related Practices & Industries

Facebook scores key victory by nixing online messaging patent

May 16, 2017

In May 2015, Cooley convinced a panel of judges at the PTAB to cancel claims of an online messaging patent asserted against Facebook by plaintiff EveryMD. A three-judge panel ruled that the challenged claims of the patent are invalid and also threw out EveryMD's proposed new claims finding that the plaintiff failed to prove the validity of those claims in light of prior art. In March 2016, the Federal Circuit upheld the PTAB's decision in its entirety.

Related contacts

Heidi Keefe
Partner, Palo Alto
Mark Weinstein
Partner, Palo Alto
Reuben Chen
Partner, Palo Alto
Andrew Mace
Special Counsel, Palo Alto

Related Practices & Industries

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Admissions and credentials

California

Rankings and accolades

Super Lawyers: Leading IP Litigator (2013 – 2025)

Minority Bar Coalition Unity Award

Lawyers of Color Hot List

The Legal 500 US: Intellectual Property: Patents – Litigation (2025)

Stanford Governors' Award

Memberships and affiliations

American Bar Association (ABA)

Asian Pacific American Bar Association of Silicon Valley, Strategic Advisory Committee

Monte Jade West Science and Technology Association, Board Member

Stanford Law School Board of Visitors

Reuben is a highly skilled litigator able to tackle large, complex litigation matters. With his strong client focus, he understands the client's business, technology, and objectives, and pursues those objectives all while litigating the case aggressively – whether to win or bring the matter to a positive resolution.

Vice President, Associate General Counsel, Varian Medical Systems