O’Melveny Worldwide

David Almeling is one of the country’s leading attorneys in trade secret law. IAM Patent 1000 calls him a “trade secret authority” and “one of the country’s best trade secret litigators." Legal 500 lists him as one of nine lawyers nationwide in its Hall of Fame for trade secrets. And The National Law Journal named him to its list of the top 50 “Intellectual Property Trailblazers & Pioneers.”

David has represented clients in countless matters that span the full range of trade secret and employee mobility issues, from advising on protection programs to investigating alleged thefts to litigating trade secret cases in the US and abroad. David's work on trade secrets also include: 

  • He has taught trade secret law at UC Berkeley Law School for each of the last five years.
  • He has testified at the invitation of Congress on safeguarding trade secrets.
  • His book, Trade Secret Law and Corporate Strategy, is now in its third edition.
  • He is currently Vice Chair of the Sedona Conference Working Group on trade secrets, which includes more than 100 of the leading lawyers, judges, and academics in this field.
  • He is one of seven co-authors of the “Trade Secret Case Management Judicial Guide,” a 400-page treatise published by the Federal Judicial Center, the educational and research agency of the federal courts.

David is also an accomplished patent litigator. IAM Patent 1000 describes him as an “up-and-coming star” who “gets great results.” David advises clients on patent strategy and litigates patent cases. He also represents clients at the US Patent & Trademark Office.

Examples of Trade Secret Litigation and Other Matters

  • Represented a California-based life sciences company in a case in which former employees and the new company they formed misappropriated trade secrets to develop competing technology relating to oligonucleotide synthesis and DNA printing technology. The favorable cash settlement of $22.5M would rank among the top-ten trade secret jury verdicts for a ten-year stretch according to data from Lex Machina. (California state court)
  • Represented New York-based pharmaceutical company in a trade secret case against former employees and the company they founded. The court granted a preliminary injunction that was widely reported and that prohibited defendants from releasing its competing drug product. The Third Circuit upheld the injunction in part, and the case then favorably settled. (D.N.J.)
  • Represented a subsidiary of a California-based public company that provides analog and mixed-signal semiconductors in a trade secret and breach of contract case involving power management semiconductor technology that resulted in a summary jury trial victory and then a favorable post-verdict settlement later that day. (Texas state court)
  • Represented a healthcare management company in a trade secret and noncompete case against the company’s former general manager and the competitor that hired that manager. The Court granted in part our client’s motion for a preliminary injunction, and shortly thereafter the parties reached a favorable confidential settlement. (D. Del.)
  • Represented a biometric sensors company against two former employees in arbitration involving claims of breach of contract and trade secret misappropriation. The arbitrator, a former federal judge, found in the company’s favor. (JAMS)
  • Represented a medical device company in six simultaneous cases involving software and hardware used to design orthodontic braces, resulting in a favorable settlement that included a significant payment to the client. The cases involved trade secret, trademark, and other claims. (N.D. Cal., W.D. Wis., ITC, and California state court)
  • Represented a leader in biometric fingerprint security solutions in a case involving trade secret claims, resulting in a favorable settlement that created the world’s largest provider of fingerprint sensors and identity management software. (N.D. Cal.)
  • Represented a fabless semiconductor company, in a trade secret and breach of contract case involving network architecture technology that resulted in a favorable settlement. (California state court)
  • Defended an innovator of HD semiconductor chips, in a case that involved trade secret, copyright, antitrust, and unfair competition claims, resulting in a favorable settlement after the successful defeat of a motion for preliminary injunction on the trade secret claim. (N.D. Cal.)
  • Defended a major manufacturer of watersports towboats in a trade secret and design patent case involving marine windshields, resulting in a favorable settlement. (M.D. Fla.)
  • Represented a Texas-based mass media company in several trade secret disputes and in a high-profile employee mobility lawsuit involving a radio personality that resulted in a favorable settlement after David helped defeat a motion for preliminary injunction. (California state court)
  • Represented the International Olympic Committee in a trademark infringement case against various websites that sold fraudulent tickets, resulting in a complete victory in the form of permanent injunctions against the websites. (D. Ariz. and N.D. Cal.)
  • Represented a large number of companies and individuals — both trade secret owners and alleged misappropriators — in various aspects of civil and criminal trade secret disputes that did not go to court, including devising trade secret protection programs, investigating alleged misappropriation and valuing trade secret claims, drafting and responding to cease-and-desist letters, enforcing and defending against non-competition agreements, negotiating pre-litigation resolutions, hiring and terminating employees, performing trade secret audits, and dealing with issues related to employee mobility.
  • Represented, pro bono, a plaintiff who alleged a school district discriminated against her because of her Egyptian nationality and Islamic faith. David helped secure, at the time, the then-second largest award in a hostile school environment claim. (Ninth Circuit and D. Nev.)

Examples of Patent Litigation

  • Defended Mountain View-based multinational public cloud computing company in over three dozen patent matters, including serving as a second chair in a jury trial in D. Del. and achieving an across-the-board victory with verdicts of invalidity and noninfringement in a case involving terrain visualization software where the plaintiff sought more than $100 million in damages. 
  • Defended a Korea-based, multinational public electronics in five patent cases. One in D. Del. involved a method of providing driving directions and resulted in complete victory in which the patent was invalidated by the PTO. Another case resulted in obtaining a writ of mandamus from the United States Court of Appeals for the Federal Circuit in a unanimous precedential opinion that rejected the plaintiffs’ novel attempt to defeat transfer by subdividing their patent rights geographically so that one plaintiff only suffered infringement in specific counties in Texas and directed the Western District of Texas court to transfer the cases to the Northern District of California.
  • Defended a Fortune 50 consumer electronics company in several patent cases, including one that involved antivirus software that resulted in a favorable settlement that led to licensing a portfolio of patents. (D. Del., S.D. Fla., E.D. Tex., W.D. Wash.)
  • Represented a San Jose-based public semiconductor manufacturer in several patent cases, including one in E.D. Pa. that involved voltage and temperature compensated amplifiers and resulted in a complete victory in which the case was dismissed shortly after O’Melveny filed a Rule 11 motion.
  • Represented a biometric payment solutions company in an appeal that decided the ownership of fifteen patents, resulting in a Federal Circuit decision that gave a complete victory to the company. (Fed. Cir.)
  • Represented two leading multinational consumer electronics companies in asserting patent infringement claims against a provider of wireless networking technology, resulting in a Federal Circuit decision approving, for the first time, of proving infringement through compliance with a technical standard. (Fed. Cir. and W.D. Wis.)
  • Represented a major manufacturer of water sports boats in three patent cases, including cases involving wake-surfing technology that resulted in favorable settlements that included substantial royalty payments. (E.D. Tenn. and M.D. Fla.)
  • Defended a California-based leading provider of video-streaming services in two patent cases, both in C.D. Cal., resulting in a favorable resolution that involved no monetary payment by the client.
  • David also has substantial experience and success advising companies regarding proceedings in the PTO. He has been involved in dozens of ex parte and inter partes reexaminations, Inter Partes Review proceedings, and Covered Business Method proceedings.


Bar Admissions

  • California

Court Admissions

  • US District Court, Northern, Southern, Central, and Eastern Districts of California
  • US District Court, Western District of Washington
  • US Court of Appeals, Third, Seventh, Ninth, Eleventh, and Federal Circuits
  • US Supreme Court


  • Duke University, J.D.: high honors; Order of the Coif; note editor, Duke Law Journal; Moot Court Board
  • University of Florida, B.A., Political Science: highest honors; valedictorian; Phi Beta Kappa

Honors & Awards

  • Named as a member of the “Hall of Fame” by The Legal 500 US for Trade Secrets (2023-2024)
  • Named a “Leading Lawyer” by The Legal 500 US for Trade Secrets (2022)
  • Recommended by The Legal 500 US  for Trade Secrets (2016-2018, 2020-2021, 2023) and Patents: Litigation (2020, 2022-2023)
  • Recognized by Managing IP as a California Patent Star (2023)
  • Recognized as a leading attorney in the IAM Patent 1000 (2016-2023), which described him as an “up-and-coming star” who “gets great results,” and a “trade secret authority” and “one of the country’s best trade secret litigators.”
  • Recommended by Who’s Who Legal for IP – Trade Secrets (2023)
  • Recognized by Best Lawyers® 2023 for Litigation - Intellectual Property; David has been listed in Best Lawyers® since 2020
  • Recognized by The Daily Journal as a Top Trade Secrets Lawyer (2020)
  • Named to the 40 & Under Hot List in Intellectual Property by Benchmark Litigation (2018 & 2019)
  • Named one of Law360’s “Rising Stars” (2017), which identifies the top attorneys in the US under age 40.  He was profiled here.
  • Named in The National Law Journal’s 2014 list of “Intellectual Property Trailblazers & Pioneers,” which highlights the top 50 intellectual property lawyers “who are raising the bar in intellectual property law.”
  • Recipient of a 2014 Distinguished Legal Writing Award from the Burton Awards.
  • Named on The Recorder’s 2013 list of “Lawyers on the Fast Track,” which identifies 50 California lawyers “whose early accomplishments indicate they will be tomorrow’s top lawyers and leaders.”
  • Named a “Rising Star” in intellectual property litigation in each of the 2013-2019 surveys conducted by Law & Politics Media Inc. and published in Northern California’s Super Lawyers magazine and San Francisco magazine.

Professional Activities


  • Honorable Gerald B. Tjoflat, US Court of Appeals, Eleventh Circuit (2004-05)


  • The Sedona Conference, Working Group 12 on Trade Secrets, Co-Chair, Vice Chair, Member of Steering Committee and Co-Lead on the Drafting Team responsible for the proper identification of asserted trade secrets and Drafting Team for monetary remedies
  • The Trade Secret Committee of the American Intellectual Property Law Association (former chair of various subcommittees)
  • The Lawyers and Judges Golf Association of Northern California

Author and Co-author (Example Publications)

Speaker (Example Presentations)

  • “Hot Topics in Trade Secrets Protection, Enforcement & Litigation,” Sandpiper Partners LLC (April 30, 2024)
  • “International Enforcement of Trade Secrets,” The 2024 Sedona Conference on Global Intellectual Property Litigation (March 5-6, 2024)
  • “Basic IP Principles and Recent Developments,” IP Issues in Business Transactions, Practising Law Institute (Feb. 2024)
  • “IP Issues in Business Transactions,” Practising Law Institute (Feb. 2024) 
  • “2024 Trade Secret Summit,” American Intellectual Property Law Association (Jan. 2024)
  • “Client Counseling: Trade Secrets for Patent Prosecutors,” 24th Annual Berkeley-Stanford Advanced Patent Law Institute (Dec. 2023)
  • “Advanced Trade Secrets 2023: New Challenges, New Solutions, and New Opportunities,” Practising Law Institute (Oct. 17, 2023)
  • “What Does the FTC’s Crackdown on Non-competes Mean for Trade Secrets?” California Lawyers Association (March 2023)
  • “Identifying Trade Secrets: More Important Than Ever,” Advanced Trade Secrets 2023: New Challenges, New Solutions, and New Opportunities, Practising Law Institute (Oct. 2023)
  • “Basic IP Principles and Recent Developments,” IP Issues in Business Transactions, Practising Law Institute (Feb. 2023)
  • “Trade Secrets Protection, Enforcement, and Litigation,” Sixth Annual San Francisco Conference, Sandpiper Partners LLC (Jan. 31, 2023)
  • “Global Trade Secret Litigation Issues,” The 2023 Sedona Conference on Global Intellectual Property Litigation (Jan. 9, 2023)
  • “State of WG12,” The Sedona Conference WG12 Annual Meeting (Sept. 9, 2022)
  • “Trade Secret Year in Review,” Berkeley Center for Law & Technology (May 11, 2022)
  • “Monetary Remedies in Trade Secret Litigation,” The 2022 Sedona Conference on Trade Secrets (May 10, 2022)
  • “IP Issues in Business Transactions,” Practicing Law Institute (Feb. 3, 2022)
  • “Trade Secret Law and Case Management,” The Federal Judicial Center (Aug. 27, 2021)
  • “New IP Issues Impacting Business Transactions,” Practicing Law Institute (Feb. 12, 2021)
  • “Trade Secrets Protection, Enforcement & Litigation,” Sandpiper Partners (Dec. 6, 2020)
  • “Caselaw Synergies: Six Recent Trade Secret Cases,” The Sedona Conference (Nov. 9, 2020)
  • “Webinar on TSC Commentary on Proper Identification of Asserted Trade Secrets in Misappropriation Cases,” The Sedona Conference (May 19, 2020)
  • “Identification of Trade Secrets,” Sedona Conference on Trade Secrets (Nov. 5, 2019)
  • “The Intersection of Patent and Trade Secrets,” Federal Circuit Bar Association’s Bench & Bar Conference (Jun. 12, 2019)
  • “Trade Secret Update,” Rocky Mountain IP Institute (May 31, 2019)
  • “Recent Developments in Trade Secret Law,” Practicing Law Institute (Feb. 7, 2019)
  • “Identification of Trade Secrets,” The Sedona Conference on Trade Secrets (Nov. 5, 2018)
  • “Trade Secret Protection, Enforcement, and Litigation,” Sandpiper Partners (Sept. 27, 2018)
  • “Recent Statistics on Trade Secrets and Key Developments in the First Two Years of the DTSA,” Intellectual Property Owners Association (June 5, 2018)
  • “Defend Trade Secret Act as It Approaches Its Second Birthday,” Law Seminars International (May 4, 2018)
  • “Top 10 Developments in the First Two Years of the Defend Trade Secrets Act,” NYIPLA and NJIPLA Trade Secrets and Cybersecurity Conference (April 18, 2018)
  • Safeguarding Trade Secrets in the United States: Hearing before House Subcommittee on Courts, Intellectual Property and the Internet, April 17, 2018 (statement of David S. Almeling)
  • “Trade Secret Damages,” Inaugural Sedona Conference on Developing Best Practices for Trade Secret Issues (Dec. 7, 2017)
  • “Trade Secrets 2016: What Every IP Attorney Should Know”, Practicing Law Institute (Dec. 5, 2016)
  • “The Defend Trade Secrets Act,” Asian American Bar Association (Aug. 18, 2016)
  • “New Patent and Trade Secret Issues Impacting Business Transactions,” Practicing Law Institute (Feb. 25, 2016)
  • “IP Issues in Business Transactions: Trade Secrets, Utility Patents, and Design Patents,” Practicing Law Institute (February 26, 2015)
  • “Understanding IP Law for In-House Counsel and Other Non-IP Lawyers,” Bridgeport Continuing Education (Feb.13, 2015)
  • “Developing Best Practices for Protecting Trade Secrets,” Trade Secret Summit (Dec. 5, 2014)
  • “New Trade Secret Legislation and the Changing Rules of Trade Secret Litigation,” Bridgeport Continuing Education (June 17, 2014)
  • “Updates on Recent Developments in Trade Secret Law: Legislation, Litigation, and Business,” American Intellectual Property Law Association (May 16, 2014)
  • “New Legal Issues Impacting IP Transactions: Copyrights, Trademarks, Domain Names, Patents, and Trade Secrets,” Practicing Law Institute (Feb. 27, 2014)
  • “Patents vs. Trade Secrets: Best Practices for Protecting and Enforcing IP,” California Bar Association Intellectual Property Law Section (Aug.7, 2013)
  • “What Lawyers and Their Clients Need to Know about the Changing Balance of Power Between Trade Secrets and Patents,” American Intellectual Property Law Association (April 23, 2013)
  • “Introduction to Trade Secret Law, Its Increasing Importance, and Its Changing Balance with Patent Law,” University of Washington School of Law (Oct. 29, 2012)
  • “Understanding Patent Law and Trade Secret Law for In-House Counsel and Other Non-IP Lawyers,” Bridgeport Continuing Education (Aug. 24, 2012)
  • “Why Trade Secret Litigation is Booming, and Why That Matters to Clients,” Sonoma County Bar Association (Jan. 23, 2012)
  • “Why Every Lawyer Should Know More about Trade Secret Law,” California Bar Association IP Institute (Nov. 11, 2011)
  • “Six Reasons That Trade Secrets Matter More and More to American Companies,” Bridgeport Continuing Education’s Prosecuting and Defending Corporate Raiding, Customer Trade Secret, and Employee Mobility Cases (Feb. 25, 2011)
  • “Trade Secret Litigation - A Statistical Analysis of Recent Trends and Implications,” California State Bar Cyber Institute (Jan. 19, 2011)
  • “Trade Secret Considerations for In-House Counsel and Executives,” California State Bar Cyber Institute (Jan. 11, 2011)
  • “The Evolution of Trade Secret Law: Reflecting on 30 Years of the Uniform Trade Secrets Act,” Hamline Law Review Symposium (April 16, 2010)

Adjunct Teaching Positions

  • Trade Secret Law, UC Berkeley School of Law (2019-current)
  • Trade Secret Law, Santa Clara University School of Law (2014)
  • Advanced Patent Law, Santa Clara University School of Law (2007)