Notable Representations, Key Contacts
Our litigators have a great track record in patent cases across all the major venues in the United States. We effectively advance our clients’ objectives, whether those are winning a dispute in court or negotiating an advantageous license. Our team provides clients with experience across multiple sectors, including semiconductors, high tech, telecom, pharmaceutical and biotechnology therapeutics, biotechnology research tools, medical devices, chemicals, manufacturing, and consumer products.
Integrated, Full-Service Patent Dispute Practice
Attorneys in the Patent Litigation group have extensive experience litigating and trying cases in all the major patent venues. We understand the landscape in each court and tribunal; this deep knowledge gives our clients a strategic advantage in high-stakes proceedings. Our patent litigators regularly represent clients in:
- U.S. District Courts: Our litigators have extensive experience, and have achieved significant wins, in the District of Delaware, the Eastern District of Texas, the Northern and Central Districts of California, the Eastern District of Virginia, the District of New Jersey, and others.
- Federal Circuit Court of Appeals: Clients rely on Weil’s patent appeals practice for its experience, acumen, and ability to deliver win after win in the Federal Circuit.
- U.S. International Trade Commission: Our lawyers regularly represent clients in high-stakes investigations under the ITC’s fast-paced procedures.
- Patent Trial and Appeal Board: We regularly work with clients on challenges to the validity of patents at the PTAB, in Inter Partes Review (IPR), Post-Grant Review, and Covered Business Method Review proceedings, both as Patent Owners and Petitioners.
- IP Due Diligence: We offer a multidisciplinary Strategic IP Counseling group that focuses on patent portfolio analysis, pre-dispute counseling and investigations, and IP transactions.
The Team’s Technical Depth
Recognized as a go-to firm for high-stakes patent litigation, we offer a deep bench of litigators with diverse technical and scientific backgrounds, including graduate and undergraduate degrees in: electrical engineering, physics, mechanical engineering, computer science, chemistry, biochemistry, molecular biology, and cell biology.
“Weil has an enduring reputation for excellence in high-exposure patent litigation between competitors, whose results transform fortunes and impact on entire industries.”
IAM Patent 1000
Key Contacts
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Ranked among the leading firms for Intellectual Property in California, New York and Nationwide
Chambers USA 2025
Ranked among the leading firms nationally for Patents: Litigation.
Legal 500 US 2025
Weil is ranked as a national Tier 1 firm for Intellectual Property
Benchmark Litigation 2025
Trial experience. Technical expertise. High level of competence.”
Legal 500 US 2025
Weil is a leader in patent litigation, with successful, experienced lawyers. They are the best choice for winning matters. The team of technically astute attorneys are dedicated to protecting and enforcing their patrons’ most valuable intellectual assets, earning implicit trust when the stakes are high.”
IAM Patent 1000 2025
The team did a phenomenal job at trial for us. The lawyers are incredibly hard working, tenacious and smart.”
Chambers Global 2025
Ranked as a Leading Firm in Patent Disputes (2025)
Managing Intellectual Property: IP Stars
Ranked among the leading firms nationally for Patent Litigation, as well as in California, New York and Washington, D.C.
IAM Patent 1000
Ranked among the leading firms in the U.S. for Intellectual Property: Patent.
Chambers Global