Mark has extensive experience working with cutting-edge companies that are improving lives through technological innovation and disrupting industries, including those in the artificial intelligence (AI), blockchain, virtual, augmented, and mixed reality, computer vision, autonomous vehicle, robotic and e-commerce industries. He also regularly counsels clients in the social media and internet space, both advising platforms in trademark matters and helping brand owners navigate social media.

Mark is recognized as a leading trademark professional by Managing Intellectual Property, which shortlisted him for Trademark Practitioner of the Year - United States in 2023 and 2025, named him a notable practitioner (2021-2025) and to its Rising Stars list (2019-2020). World Trademark Review 1000 recognizes Mark for enforcement and litigation as well as prosecution and strategy in New York. Chambers USA recognized Mark as a leading lawyer in New York for trademark, copyright, and trade secrets transactional work in 2025. Super Lawyers honored Mark among the leading intellectual property lawyers in Northern California from 2017 through 2021. Since 2022, Mark has been recognized annually as a key lawyer by The Legal 500 in intellectual property: trademarks. World IP Review named Mark to their Outstanding category for non-contentious trademark work in the USA in 2023, 2024, and 2025 as well as naming him as one of the world’s top IP lawyers in 2024. Huski.ai’s data-driven analysis of USPTO filings ranked Mark as the number one trademark attorney for Web3 in 2022 and among the top ten AI attorneys in the US in 2023. In 2024, Mark was named a Rising Star by New York Law Journal.