Mark Jansen, Trademark and Brand Advisor to the Tech Sector, Joins Orrick

3 minute read | November.05.2026

Mark Jansen, a Chambers Band 1-ranked trademark lawyer and brand counsel to leading technology companies, has joined Orrick as a partner. Based in New York, Mark will help shape the continued growth and evolution of Orrick’s trademark practice.
Mark advises clients on the brand decisions that drive commercial success and enterprise value, spanning global brand strategy, high-stakes disputes, and the intellectual property aspects of mergers, acquisitions and other strategic transactions.
Mark works with companies at every stage of growth, from startups to Fortune 100 companies, to build brands, bring products to market and protect the brand assets that drive business value. He counsels some of the world’s leading technology companies and has guided hundreds of brand and product launches. His experience spans AI, fintech, blockchain, enterprise software, hardware, consumer technology and e-commerce, gaming, autonomous vehicles and robotics, and space and defense technology.
Mark represents companies in high-stakes trademark disputes at every stage, from pre-litigation risk assessment, cease-and-desist demands and settlement negotiations to proceedings before the Trademark Trial and Appeal Board (TTAB) and cross-border trademark conflicts. He also handles domain name disputes, anti-counterfeiting matters and trademark issues involving internet and social media platforms. His approach focuses on resolving disputes efficiently while protecting business priorities.
Mark is also an experienced negotiator of high-value brand transactions, including strategic acquisitions of trademarks and domain names, licensing arrangements and coexistence agreements that secure the rights companies need to launch, expand and grow.
Mark is the sixth IP practitioner to join Orrick this year, following ITC trial lawyer Jordan Coyle, IP trial lawyers Danielle Tully, Mike Powell and Josh Glucoft, and former USPTO Solicitor Farheena Rasheed. He joins from Fenwick, where he practiced for 15 years and became a partner in 2021.

“Clients at every stage look to us for advice on run-the-company issues as well as milestones, and trademark and brand counseling is key to both,” said Orrick trademark trial partner Sheryl Garko. “Mark brings a valuable business-minded approach to innovators, helping them navigate critical brand decisions as they launch products, expand into new markets and build businesses for the long term. His experience in high-stakes trademark disputes is also a natural complement to our trademark trial team.”

“Trademark excellence has long been a cornerstone of Orrick’s leading IP practice,” said Alyssa Caridis, leader of Orrick’s IP business unit. “Mark’s arrival further strengthens our capabilities across the full spectrum of trademark services, from strategic counseling to litigation. His commercial perspective and focus on evolving how trademark services are delivered will be valuable additions as we continue to grow our platform and support clients across technology, crypto and other emerging markets.”

“Orrick pairs deep strength in trademark trials and litigation with a leading technology platform and a focus on innovation,” said Mark. “I’m greatly looking forward to collaborating with this team to bring a technology-forward approach to how brand counsel is delivered, from a company’s first launch to its global portfolio.”

Mark has earned recognition from leading legal industry publications for his work in trademark strategy, enforcement and litigation. In addition to his recognition by Chambers USA for trademark, copyright and trade secrets transactional work, Mark has also twice been shortlisted for Managing IP’s Trademark Practitioner of the Year – United States. World Trademark Review 1000 recognizes him for enforcement and litigation, as well as prosecution and strategy, in New York, while The Legal 500 has recognized him annually as a key lawyer in intellectual property: trademarks since 2022. He was named to the Lawdragon 500 Leading Global IP Lawyers list (2026) and was recognized by World IP Review among the world’s top IP lawyers, among other distinctions.

Orrick’s IP team has been recognized as one of the top 10 IP teams in the country by Chambers and was named a finalist for The American Lawyer’s IP Litigation Department of the Year in 2025, marking the team’s second consecutive finalist recognition and fourth overall.

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Mark Jansen Partner, Trademark, Copyright & Media, Geistiges Eigentum

New York

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D:+1 212 506 5127
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Practice:

Trademark, Copyright & Media
Geistiges Eigentum

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Mark Jansen Partner

New York

Mark helps companies at the frontier of technology launch new brands, build global portfolios and grow into household names. He advises on the brand decisions that shape their businesses, from naming strategy and global clearance to building, managing and protecting international trademark portfolios. He handles high-stakes brand acquisitions, securing third-party trademarks and domain names so clients can launch and rebrand under the names they want. Working directly with CEOs, founders, CMOs and general counsel, he provides commercially focused advice on brand development, trademark protection and the strategic management of valuable brand assets. His clients span AI, enterprise software, hardware, consumer technology and e-commerce, gaming, virtual and augmented reality, autonomous vehicles and robotics, space and defense technology, blockchain and other emerging industries. He also regularly advises internet and social media platforms on trademark and brand protection matters.

He has extensive experience handling complex, high-stakes trademark disputes. He advises clients on pre-litigation strategy, infringement claims, cease-and-desist letters and settlement negotiations. His work also includes opposition and cancellation proceedings before the Trademark Trial and Appeal Board (TTAB), multijurisdictional trademark conflicts, domain name disputes, including cybersquatting claims under the Anticybersquatting Consumer Protection Act (ACPA), and anti-counterfeiting enforcement. He develops strategies designed to protect clients’ brands, resolve conflicts and minimize business disruption. He also negotiates coexistence agreements that support product launches, market expansion and broader business objectives.

Mark regularly advises on the trademark and brand aspects of mergers and acquisitions, including intellectual property due diligence, trademark portfolio reviews, risk assessment, IP integration and post-transaction brand strategy. His transactional experience also includes complex intellectual property acquisitions and licensing, helping clients identify, value, acquire and protect the brand assets central to their business and growth strategies.

He brings a technology-forward approach to trademark practice and is helping modernize how Orrick delivers trademark services, pairing experienced legal judgment with modern technology across clearance, portfolio management and enforcement.

Mark is recognized for his trademark work by Chambers USA, World Trademark Review 1000, The Legal 500 and Lawdragon, and has twice been shortlisted for Managing IP’s U.S. Trademark Practitioner of the Year (2023 and 2025), among other accolades.

He speaks regularly at programs hosted by the International Trademark Association (INTA), PLI, the USPTO and The L Suite, and is active in INTA, the American Bar Association’s Section of Intellectual Property Law, the Intellectual Property Owners Association and MARQUES.

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Markets

New York