Mark Jansen

Associate, Intellectual Property  

Mountain View | New York 650.335.7867


Mark Jansen’s practice focuses on domestic and international trademark and trade name counseling, and strategies for developing and managing domain name portfolios. He advises clients from startups to multinational corporations on brand strategy and the protection of brand assets including brand creation, selection, protection, expansion and enforcement. Mark regularly counsels clients across a wide range of industries including e-commerce, artificial intelligence, augmented reality and virtual reality. He also has extensive experience in the social media and Internet space, both advising platforms in trademark matters and helping brand owners navigate social media.

Mark is active in the International Trademark Association (INTA), the Intellectual Property Owners Association (IPO) and the American Bar Association’s (ABA) Intellectual Property Law Section. In 2017, Super Lawyers honored him among the leading intellectual property lawyers in Northern California.​

While in law school, Mark was honored with the ABA/BNA Award for Excellence in the Study of Intellectual Property Law, the Witkin Award for Academic Excellence in Intellectual Property and a CALI Excellence for the Future Award. He was also Lead Production Editor for the Santa Clara Computer & High Technology Law Journal. Mark served as a judicial extern for the Honorable Terry J. Hatter Jr. of the U.S. District Court of the Central District of California and also worked as a law clerk for Oracle, Quantum, and eBay.


  • “Applying Copyright Theory to Secondary Markets: An Analysis of the Future of 17 USC § 109(a) Pursuant to Costco Wholesale Corp. v. Omega S.A.”, Santa Clara Computer & High Tech Law Journal, Vol. 28, No. 1, November 2011.