Mark Liang

O'Melveny & Myers LLP

Mark Liang focuses his legal practice on patent and technology-related litigation. He has experience in all stages of patent cases, including claim construction, fact and expert discovery, dispositive motions, trial preparation, post-trial, and appeal.  He represents clients in federal courts, the International Trade Commission, and in proceedings before the US Patent and Trademark Office, including reexaminations and inter partes review (IPR).

Mark has a background in electrical engineering, and has experience and knowledge of telecommunications, signal processing, multimedia, computer graphics, computer hardware, electronics, internet technologies, and semiconductor fabrication.

Mark regularly handles large and challenging patent cases, including several that have gone to trial and appeal. He also handles trade secret cases and advises on software copyright and technology standards matters, including F/RAND damages and obligations to standards setting organizations.

He represents a variety of businesses in the technology sector, including Internet, consumer electronics, mobile devices, telecommunications providers, and telecommunications equipment manufacturers.


  • Defending a consumer electronics company across seven actions and IPR proceedings covering twenty-three patents relating primarily to semiconductor fabrication. (E.D. Tex., D. Del., D.N.J., USITC; USPTO)
  • Defending as trial and post-trial counsel an Internet software company in a patent case relating to computer and Internet security software. (E.D. Tex.)
  • Defended as trial and post-trial counsel an Internet software company in a patent case relating to mapping technologies. (D. Del.; Fed. Cir.)
  • Defended a consumer electronics company in a nine-patent case relating to computer hardware and graphics processor technologies used in mobile devices. (E.D. Tex.)
  • Defended an Internet and television provider against a patent licensing fund in a 19-patent case relating to digital subscriber line (DSL) technology. (W.D. Tex.)
  • Defending a consumer electronics company in a three patent case relating to memory chips, inter-chip communication protocols, mixed signal circuits, and related technology standards (E.D. Tex.)
  • Defending an Internet software company in a five patent case relating to image processing and navigation technologies (D. Del.)
  • Defending an Internet software company in an eleven patent case relating to user interfaces and web applications for deploying multimedia (N.D. Cal.)
  • Defended an Internet software company in a three-patent case, IPR proceedings, and Federal Circuit appeal relating to mapping and graphics technologies. (N.D. Tex.; USPTO; Fed. Cir.)
  • Advised an Internet software company on software copyright and patent issues relating to application programming interface definitions and programming expressions.
  • Advised electronics equipment and component designer on trade secret matter.
  • Defended an Internet software company in a patent case relating to navigation software. (S.D. Cal.; N.D. Cal.)
  • Defended an Internet software company in a six-patent case relating to mapping, navigation, and wearable computing technologies. (D. Nev.)


  • California
  • Illinois
  • US Patent and Trademark Office
  • US District Court, Northern, Central, and Southern Districts of California
  • US Federal Circuit Court of Appeal


  • University of Chicago, J.D.: with honors; John M. Olin Fellowship in Law and Economics; Executive Editor, The Chicago Journal of International Law
  • University of Toronto, B.A.Sc., Electrical Engineering: with high distinction


  • Seventh Circuit Court of Appeals


  • Bar Association of San Francisco


Rate : $$$

What types of cases Attorney Mark Liang & O'Melveny & Myers LLP can handle?
O'Melveny & Myers LLP can handle cases related to laws concerning Copyright Application, Antitrust & Trade, Intellectual Property, International Law, Telecommunications. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is O'Melveny & Myers LLP located?
O'Melveny & Myers LLP is located at Two Embarcadero Center, Embarcadero Center 28th floor, San Francisco, CA 94111, USA. You can reach out to O'Melveny & Myers LLP using their phone line 415-984-8882. You can also check their website or email them at [email protected].
How much would it cost to hire O'Melveny & Myers LLP?
Mark Liang lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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O'Melveny & Myers LLP
Two Embarcadero Center, Embarcadero Center 28th floor, San Francisco, CA 94111, USA
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