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  1. Professionals

David Enzminger

Partner

Los Angeles

+1 213-615-1780

Silicon Valley

+1 650-858-6580

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  • Overview
  • Experience
  • Credentials
  • Insights & News

David has a nuanced understanding of cutting-edge technologies, as well as a track record of success as a “superb first-chair trial lawyer” (IAM Patent 1000). His extensive experience handling complex patent and trade infringement cases in state and federal courts for clients in the telecommunications, computer hardware and software, and manufacturing industries earned him recognition among The Daily Journal’s “Top 100 Lawyers in California” and as one of the “Top 75 California IP Litigators” in 2013. Clients praise his “command of subject matter” and “excellent client service” (The Legal 500 US 2018).

David focuses his practice on technology litigation, emphasizing patent, trade secret, trademark, and antitrust matters.

David has participated in bench and jury trials, including serving as first chair in more than 15 matters. As lead trial counsel, his 2012 jury verdict for client Belkin was selected by the Daily Journal as a “Top Verdict” of 2012. This case involved technology related to wireless network technology and access point devices.

Additional clients include Motorola, International Game Technology, Raytheon, Pepsi Cola Co., and Luxottica Corp. 

He is the co-leader of the firm's Videogame, Gaming and Esports Group dedicated to providing comprehensive legal solutions to companies in these industries.

Key Matters

David’s representative cases include the following:

  • Representing leading video game developer companies in three patent infringement actions involving multiplayer online video technology in the District of Delaware.
  • Represented a leading semiconductor company in patent infringement in the International Trade Commission and the Northern District of California. 
  • Representing a leading manufacturer of slot machines and other gaming products in a patent infringement actions involving slot machine system technology pending in the District of Delaware and Nevada.
  • Representing a computer products peripheral supplier in patent actions pending in the Northern District of California, Delaware, Oregon, and the Eastern District of Texas.
  • Representing a manufacturer of cellular telephones and wireless technology in several patent litigation matters pending the Southern District of California.
  • Represented a major beverage company in a patent infringement action in the Central District of California relating to Internet advertising technology.
  • Represented a leading gaming company in a trade secret misappropriation and unfair competition matters in California and Nevada.
  • Represented a leading provider of Client Relationship Management (CRM) software in litigations in state and federal court against a competitor involving alleged theft of trade secrets, false advertising, and unfair competition; the case included a six-week trade secret misappropriation trial.
  • Represented a manufacturer and supplier of audio, video, and computer peripherals and accessories in a patent infringement case pending in the Western District of Washington, which involves KVM computer switch technology, and in the Northern District of California, which involves patent infringement in spread spectrum wireless communications.
  • Represented a semiconductor company in a patent case in the Northern District of California involving semiconductor products for power supply regulation.
  • Represented a telecommunications company in a series of patent infringement matters relating to fiber optic transceiver technology in the Northern District of California, the Central District of California, and Delaware.
  • Represented a manufacturer of zero-emission, freeway-speed electric vehicles in trade secret, trademark, and contractual matters in the Superior Court for the State of California.
  • Represented a computer components manufacturer in a patent infringement case in the Central District of California relating to computer cooling fans.
  • Represented a leading supplier of consumer video editing software in a patent infringement case in the Eastern District of Texas.
  • Represented a large telescope manufacturer with respect to telescope optics technology.
  • Represented a leading software company in a patent infringement and trademark infringement case relating to Internet CD recognition services in the Northern District of California.
  • Represented a manufacturing company in a patent infringement case involving laser manufacturing technology.
  • Represented a recreational products company in a patent infringement case in the Central District of California involving a brake design for a scooter.
  • Represented a major telecommunications company in a patent infringement action in the District of Delaware involving five patents relating to semiconductor products for power supply voltage regulatory circuits.
  • Represented a computer manufacturer in the Northern District of California (San Jose) in a series of matters involving 18 patents in a broad array of computer disk drive technologies.
  • Represented an electronics components maker in a Central District of California action involving antitrust, patent, and trade secret issues.
  • Represented an automotive components importer in a patent infringement action after a jury awarded substantial damages at trial while the client was represented by another firm; the court then vacated the judgment and dismissed the client from the lawsuit.
  • Represented a designer of architectural water features and fountains in a trade secret misappropriation action in California Superior Court.
Recent Experience
ITC ALJ Issues Win for AMD

  • Recognized by IAM Patent 1000 (2012–2024); David is described as a “great relationship partner and an able advocate who looks at issues through a pragmatic lens,” a “choice lead trial lawyer for any size case,” and “deeply thoughtful about the most efficient and effective approaches to patent litigation and strategic case management.” He “responds quickly and solves complicated problems in practical fashion.”
  • Recognized as one of The Lawdragon “500 Leading Litigators in America” for IP litigation, including patent and trademark (2022–2025)
  • Recognized by The Legal 500 US  as a “Key Lawyer” for Intellectual Property: Trade Secrets (Litigation and Non-Contentious Matters) (2024) and for Intellectual Property: Copyright and for Patent Litigation(2019, 2022–2024)
  • Recognized by Benchmark Litigation US as a “Litigation Star” for Intellectual Property (2015–2025) and a “California Litigation Star” (2025)
  • Recognized by Managing Intellectual Property as a “Patent Star” (2022; 2024)
  • Listed in Southern California Super Lawyers (2014–2021)
  • Recognized by Chambers USA as a “Notable Practitioner” for Intellectual Property (Nationwide) (2018–2019)
  • Listed as one of the Daily Journal’s “Top 100 Lawyers in California” (2013)
  • Listed as one of the Daily Journal’s “Top 75 California IP Litigators” (2013)
  • Included in the Los Angeles Business Journal report, “Who’s Who in L.A. Law: Angelenos to Know in Intellectual Property Law” (2012)

David is a member of the following organizations: 

  • American Intellectual Property Law Association committees on Antitrust and Patent Litigation
  • American Bar Association sections of Antitrust Law and Intellectual Property Law
  • Association of Business Trial Lawyers
  • Los Angeles County Bar Association
  • University of Redlands, Board of Trustees
An experienced trial lawyer who knows how to orchestrate big wins at bench and jury trials.

IAM Patent 1000

Capabilities

Antitrust/Competition
Technology Antitrust
Patent Litigation
Litigation/Trials
Trademark Litigation, Prosecution & Brand Protection
Trade Secrets, Non Competes & Restrictive Covenants
Intellectual Property
Technology, Media & Telecommunications
Automotive & Mobility

Key Matters

David’s representative cases include the following:

  • Representing leading video game developer companies in three patent infringement actions involving multiplayer online video technology in the District of Delaware.
  • Represented a leading semiconductor company in patent infringement in the International Trade Commission and the Northern District of California. 
  • Representing a leading manufacturer of slot machines and other gaming products in a patent infringement actions involving slot machine system technology pending in the District of Delaware and Nevada.
  • Representing a computer products peripheral supplier in patent actions pending in the Northern District of California, Delaware, Oregon, and the Eastern District of Texas.
  • Representing a manufacturer of cellular telephones and wireless technology in several patent litigation matters pending the Southern District of California.
  • Represented a major beverage company in a patent infringement action in the Central District of California relating to Internet advertising technology.
  • Represented a leading gaming company in a trade secret misappropriation and unfair competition matters in California and Nevada.
  • Represented a leading provider of Client Relationship Management (CRM) software in litigations in state and federal court against a competitor involving alleged theft of trade secrets, false advertising, and unfair competition; the case included a six-week trade secret misappropriation trial.
  • Represented a manufacturer and supplier of audio, video, and computer peripherals and accessories in a patent infringement case pending in the Western District of Washington, which involves KVM computer switch technology, and in the Northern District of California, which involves patent infringement in spread spectrum wireless communications.
  • Represented a semiconductor company in a patent case in the Northern District of California involving semiconductor products for power supply regulation.
  • Represented a telecommunications company in a series of patent infringement matters relating to fiber optic transceiver technology in the Northern District of California, the Central District of California, and Delaware.
  • Represented a manufacturer of zero-emission, freeway-speed electric vehicles in trade secret, trademark, and contractual matters in the Superior Court for the State of California.
  • Represented a computer components manufacturer in a patent infringement case in the Central District of California relating to computer cooling fans.
  • Represented a leading supplier of consumer video editing software in a patent infringement case in the Eastern District of Texas.
  • Represented a large telescope manufacturer with respect to telescope optics technology.
  • Represented a leading software company in a patent infringement and trademark infringement case relating to Internet CD recognition services in the Northern District of California.
  • Represented a manufacturing company in a patent infringement case involving laser manufacturing technology.
  • Represented a recreational products company in a patent infringement case in the Central District of California involving a brake design for a scooter.
  • Represented a major telecommunications company in a patent infringement action in the District of Delaware involving five patents relating to semiconductor products for power supply voltage regulatory circuits.
  • Represented a computer manufacturer in the Northern District of California (San Jose) in a series of matters involving 18 patents in a broad array of computer disk drive technologies.
  • Represented an electronics components maker in a Central District of California action involving antitrust, patent, and trade secret issues.
  • Represented an automotive components importer in a patent infringement action after a jury awarded substantial damages at trial while the client was represented by another firm; the court then vacated the judgment and dismissed the client from the lawsuit.
  • Represented a designer of architectural water features and fountains in a trade secret misappropriation action in California Superior Court.
Recent Experience
ITC ALJ Issues Win for AMD

Credentials

Education

David received a J.D., cum laude, in 1988 from Arizona State University, where he was a staff member and associate editor with the Arizona State Law Journal. He received a B.A. in political science and German, cum laude, from the University of Redlands in 1985, where he was Phi Beta Kappa. 

    Admissions
    • California

    Related Insights & News

    Publications:

    • Co-Author, “President Obama Signs Federal Defend Trade Secrets Act,” IPWatchdog, May 2016
    • “Adoptive Admissions in Patent Litigation: Third Party Content on a Company’s Website,” Intellectual Property Today, October 2009

    Speeches and Presentations:

    • Moderator, “Judicial Perspectives on the New World of Intellectual Property,” USC Gould School of Law’s 2017 Intellectual Property Institute, March 2017. 
    • Co-Presenter, “Strategies to Maintain and Enforce Your Trade Secrets,” Winston & Strawn eLunch Briefing, March 2016 and September 2014 
    • Moderator, “Déjà Vu All Over Again (or Not): Patent Reform 2014,” 15th Annual Silicon Valley Advanced Patent Law Institute, December 2014 
    • Moderator, “Defensive Trial Strategies: Preparation Management & Strategy,” IP Defense: Silicon Valley, October 2014
    • Presenter, “Developments in IP,” Winston & Strawn eLunch Briefing, April 2014 
    • Co-Presenter, “Developments in Intellectual Property Law - What Every General Counsel Should Know,” ACCA-SoCal Chapter’s DoubleHeader® Event, November 2013
    Recognitions

    Winston & Strawn Recognized in 2025 Benchmark Litigation

    October 3, 2024

    Recognitions
    Winston Attorneys Featured on the 2025 Lawdragon 500 Leading Litigators in America List

    September 6, 2024

    Recognitions
    Winston & Strawn Recognized in The Legal 500 U.S. 2024

    June 12, 2024

    Recognitions
    Winston Recognized in 2024 IAM Patent 1000 Rankings

    June 5, 2024

    Recognitions
    Winston Team Recognized in Am Law Litigation Daily’s Litigator of the Week Column

    January 26, 2024

    Client Success
    ITC ALJ Issues Win for AMD

    January 25, 2024

    Recognitions

    Winston & Strawn Recognized in 2024 Benchmark Litigation

    October 6, 2023

    Recognitions
    Winston & Strawn Partners Recognized in 2024 Lawdragon 500 Leading Litigators in America

    September 8, 2023

    Recognitions
    Winston Recognized in 2023 IAM Patent 1000 Rankings

    June 26, 2023

    Recognitions
    Winston & Strawn Recognized in The Legal 500 U.S. 2023

    June 7, 2023

    News
    2022 Pro Bono Impact Report

    May 1, 2023

    Sponsorship
    Winston & Strawn Sponsors 2023 USC Gould School of Law Intellectual Property Institute

    March 20, 2023

    View All Insights & News

    Capabilities

    Antitrust/Competition
    Technology Antitrust
    Patent Litigation
    Litigation/Trials
    Trademark Litigation, Prosecution & Brand Protection
    Trade Secrets, Non Competes & Restrictive Covenants
    Intellectual Property
    Technology, Media & Telecommunications
    Automotive & Mobility
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