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Mark Lezama

Mark Lezama is a litigation partner in our Orange County office specializing in patent disputes.

Mark represents patent owners and accused infringers alike, in jurisdictions all across the country. He approaches litigation thoughtfully, working with clients to position their cases for meaningful victories. In a recent contract case involving a patent license, Mark obtained for his client a court-ordered injunction requiring the licensee to honor its agreement and withdraw its challenges to his client’s patents at the Patent and Trademark Office. When the licensee appealed, Mark obtained an affirmance from the Ninth Circuit for his client. In another case, Mark obtained key evidentiary rulings for his client early on, laying the groundwork for the court to rule that his client did not infringe just six months into the case. Mark builds on courtroom successes like these by planning and taking strategic steps out of court for his clients, including pursuing inter partes review by the Patent Trial and Appeal Board. He also counsels on patent-portfolio strategy, patent-infringement and validity assessments, and licensing transactions.

Owing to his strong background in mathematics and computer science, Mark’s practice encompasses a wide variety of technologies, including such diverse fields as quantum computing, mobile apps, computer networks, cryptography, optics, medical devices, thermoelectrics, internal-combustion engines, and surf systems for sport boats.

Before joining the firm in 2007, Mark worked for the Honorable Rosalyn M. Chapman of the United States District Court for the Central District of California and was Symposium Editor for the Berkeley Technology Law Journal.


University of California – Berkeley – School of Law (CAL), J.D.
Harvard University, A.B., Mathematics
State Bar of California
U.S. Court of Appeals for the Federal Circuit
U.S. Court of Appeals for the Ninth Circuit
U.S. District Court – Central District of California
U.S. District Court – Northern District of California
Communications Technology

Wireless Local Area Networks

Electrical, Semiconductor & Computer Technology

Electronics & Semiconductors

Software & IT

Fashion & Beauty

Financial Services & Business Methods

Blockchain & Smart Contracts

Cloud Computing

Cryptocurrency & Encryption

Data Privacy

Dispute Resolution

Licensing & Indemnification

Open Source

Media, Advertising & Entertainment

Mobile Applications

Online Games

Video Games and Interactive Entertainment

Medical Devices & Procedures

Transportation & Vehicles

Appellate Litigation
Assignments and Licenses
Copyright Litigation
Copyright Litigation
Covered Business Method (CBM)
Due Diligence
Global Portfolio Management
Infringement Risk 
Inter Partes Review (IPR)
IP Strategy
IP Transactions and Agreements
ITC Litigation
Opinions and Counseling
Opinions Counseling
Patent Litigation
Patent Strategy & Prosecution
Patent Trial & Appeal Board (PTAB) Litigation
PostGrant Review (PGR)
PTAB Overview
Tech Transactions
Trade Secret & Employee Mobility Litigation
Trademark and Brand Protection Litigation
U.S. Patent Prosecution

Federal Circuit Bar Association

Federal Bar Association

Association of Business Trial Lawyers

International Association for Cryptologic Research

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