Intellectual Property
Weil offers a truly comprehensive intellectual property practice, encompassing IP litigation (including patent, copyright, and trademark); technology and IP transactions; and our strategic IP counseling practice.
Notable Representations, Key Contacts
Intellectual Property Litigation
Weil’s intellectual property litigators regularly handle high-stakes cases involving cutting-edge technology and complex and evolving legal issues.
Patent Litigation
When the world’s leading companies face critical patent issues – disputes where the stakes are high, the jurisdiction is unfriendly, or the technology is complex – they turn to Weil’s patent litigators.
IP/Media Litigation
Weil has played a substantial role in shaping intellectual property and media law. In a media landscape undergoing constant technological transformation, our practice regularly handles high-stakes cases whose outcomes affect how intellectual property and content are developed, distributed, and licensed.
Technology and Intellectual Property Transactions
Our Technology and IP Transactions lawyers spend 100% of their time on transactions where both technology and intellectual property issues are present — a distinguishing feature of Weil.
Accordingly, they are trusted advisors on many of the technology sector’s most significant global transactions.
Intellectual Property Counseling
Weil offers a strategic IP Counseling practice that advises clients on issues relating to IP management, enforcement, dispute counseling, transactions and acquisitions.
Key Contacts



Shortcut Links
In both 2017 and 2018, Weil was honored as “IP Firm of the Year” at Benchmark Litigation’s U.S. Awards
Benchmark Litigation 2017-2018
Weil is recognized as a top-ranked Tier 1 firm for Intellectual Property.
Benchmark Litigation 2022
Ranked among the leading firms nationally for Patent Contentious and PTAB Litigation.
Managing Intellectual Property 2022
Clients note that Weil’s IP practice is "first-rate," and that "Weil is unique in the talent that it brings to each task…from partner level to senior associates, all the attorneys are top notch."
Managing Intellectual Property 2019
Weil is ranked as a top-ranked Tier 1 firm nationwide for both IP: Copyright and IP: Patent Licensing—notably the only law firm with this distinction
Legal 500 US 2020
Weil is ranked as “Leading Firm” for Intellectual Property in New York, California, Texas and Nationwide.
Chambers USA 2023
This international powerhouse handles a significant amount of work in the overlap between IP and media…” and “maintains its position at the cutting edge of media issues” by acting “for an enviable list of top media clients.” Clients call us “true experts in the field,” and highlight our “practical, knowledgeable and well-staffed” practice.
Chambers USA 2015-2018
Awards and Recognition, Speaking Engagements, Latest Thinking, Firm News & Announcements
Awards and Recognition
- Weil Named a Top-Ranked Tier 1 Firm for Intellectual Property Award Brief — Benchmark Litigation 2021
- Weil Named Copyright “Firm of the Year” – United States Award Brief — Managing Intellectual Property Americas Awards 2020
- Weil Named Copyright “Firm of the Year” – United States Award Brief — Managing Intellectual Property Americas Awards 2019
- Weil Named Transactional “Firm of the Year” – United States Award Brief — Managing Intellectual Property Americas Awards 2019
- Weil Named a “Leading” Firm for Intellectual Property: Patent, USA Award Brief — Chambers Global 2020
Speaking Engagements
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Enablement in Life Sciences Cases
Speaker(s):
Elizabeth S. Weiswasser and
Priyata Patel
March 8, 2022 — Webinar — Litigation Department Co-Chair Elizabeth Weiswasser and associate Priyata Patel participated in a webinar entitled “Enablement in Life Sciences Cases,” sponsored by the Berkeley Center for Law & Technology as part of BCLT’s Law & Tech Speaker Series. They provided an overview of the development of the law of enablement in cases involving the life sciences.
Latest Thinking
- The Media and Entertainment Law Review: Preface and United States Chapter Publication — The Law Reviews — By Benjamin E. Marks — PDF — December 2022
- FTC Orders Destruction of Algorithms Created From Unlawfully Acquired Data Publication — The Journal of Robotics, Artificial Intelligence & Law — By Randi W. Singer — PDF — November 2021
- FTC Orders Destruction of Algorithms Created From Unlawfully Acquired Data Alert — Intellectual Property & Media — By Randi W. Singer — PDF — May 11, 2021
- Two Princes: Second Circuit Offers New Insights on Transformative Use Alert — Intellectual Property & Media — By Todd Larson — PDF — April 01, 2021
- ‘Canada Hockey’ Tests the Limits on State Sovereign Immunity for Copyright Infringement Publication — New York Law Journal — By Benjamin E. Marks and Rachel Kaplowitz — March 22, 2021
Firm News & Announcements
- Weil Partners Named 2023 Top Women in Litigation by Benchmark Litigation Firm Announcement — August 03, 2023
- Benchmark Litigation Names Five Weil Partners to 40 & Under Hot List for 2023 Firm Announcement — August 01, 2023
- Weil’s IP Practices Receive Outstanding Recognition in 2023 IAM Patent 1000 Survey Firm Announcement — June 27, 2023
- Weil Helps Synthego Invalidate Agilent’s CRISPR Patents In Major PTAB Victory Litigation Win — May 24, 2023
- Weil Doubly Honored at 2023 Managing Intellectual Property Americas Awards Firm Announcement — May 01, 2023
- Benjamin Marks and Todd Larson Named to Billboard’s 2023 Top Music Lawyers List Firm Announcement — April 04, 2023