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Our Patent Litigation Practice is one of the country’s most active and highly regarded. Our seasoned patent litigators bring extensive courtroom experience to every matter we handle. According to Lex Machina, we are among the top three national patent defense firms in the country for number of appearances and cases filed, and we also were the top national defense firm for number of patent trials in the last five years (2018–2022).
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Winston’s Intellectual Property (IP) Practice is one of the most active and highly regarded in the United States per Chambers USA, Benchmark Litigation US, and Best Law Firms®, among other ranking organizations. Our team features some of the country’s best IP lawyers, attorneys with the technical abilities to litigate and try highly complex IP disputes, and technical lawyers who provide critical advisory services.
Experience 542 results
Experience
|December 15, 2025
Winston & Strawn LLP represented Apogem in the closing of a single-asset continuation vehicle for Lion Beverages, LLC. The transaction, led by Apogem and including J.P. Morgan Asset Management, RCP Advisors, and Montana Capital Partners, raised over $150 million, with significant participation from Encore Consumer Capital. The meaningful GP commitment underscores both confidence in Lion and alignment with investors.
Experience
|December 11, 2025
Winston Takes the Checkered Flag After “Massive Win” Settlement
Winston squared off in the W.D.N.C. against lawyers for NASCAR in an antitrust lawsuit brought on behalf of racing teams Front Row Motorsports Inc. and 23X1 Racing LLC—the team co-owned by Michael Jordan and driver Denny Hamlin—alleging monopolization of the market for premier stock car racing teams. On December 11, 2025, nine days into trial and the morning after the plaintiffs rested their case, the parties jointly announced a settlement. Jeffrey Kessler, Jeanifer Parsigian, and Danielle Williams were recognized by American Lawyer with its top “Litigator of the Week” honors on December 19, 2025, for this historic settlement.
Experience
|December 3, 2025
US Tiger Securities Announced IPO
Winston & Strawn LLP is serving as U.S. securities counsel to US Tiger Securities, Inc., a full-service broker/dealer, in connection with the $10,000,000 initial public offering of SMJ International Holdings Inc., a Singapore-based premium flooring specialist. The Company priced 2,500,000 Class A ordinary shares at US$4.00 per share. The Class A ordinary shares are expected to begin trading on the NYSE American under the ticker symbol “SMJF” on December 4, 2025.
Insights & News 8,891 results
Seminar/CLE
|January 20, 2026
Winston & Strawn and RSM US LLP are co-hosting the annual NYC SBIC Fund Conference on Tuesday, January 20, 2026.General and limited partners, chief financial officers, and controllers of small business investment company (SBIC) funds are invited to a half-day seminar covering various topics related to SBIC fund operations, including:
In the Media
|January 5, 2026
|1 Min Read
Winston Lawyers Featured in Mealey’s International Arbitration Report
Winston & Strawn lawyers Laurens Wilkes, Gus Membiela, and Madison Haueisen were featured in the Mealey’s International Arbitration Report featuring commentary from international arbitration leaders discussing the use of an AI arbitrator for construction arbitrations. In their commentary Laurens, Gus, and Madison provide their thoughts on the legal, ethical, and practical implications of the American Arbitration Association’s International Centre for Dispute Resolution (AAA-ICDR) announcement.
Capital Markets & Securities Law Watch
|December 31, 2025
|5 Min Read
Section 16 Obligations Expand to Apply to Foreign Private Issuers
On December 18, 2025, as part of the National Defense Authorization Act for fiscal year 2026, the Holding Foreign Insiders Accountable Act (HFIAA) was signed into law. The HFIAA amends Section 16(a) of the Securities Exchange Act of 1934 to require directors and executive officers of foreign private issuers with a class of equity securities registered under Section 12 of the Exchange Act to comply with the same insider reporting rules that apply to U.S. domestic issuers. Beginning in March 2026, covered FPI insiders must publicly disclose their equity ownership and transactions on the same forms used by U.S. issuers—Forms 3, 4, and 5.
Other Results 140 results
Law Glossary
What Is the Patent Trial and Appeal Board?
The Patent Trial and Appeal Board (PTAB) is a tribunal within U.S. Patent and Trademark Office. The PTAB oversees trial proceedings, namely: inter partes review (IPR), post-grant review (PGR), covered business method (CBM) review, and derivation proceedings. The Board also hears appeals from adverse patentability decisions by patent examiners in original applications, reissues, and reexaminations. And, while phasing out since the passage of the America Invents Act (AIA) in 2011, the PTAB is also responsible for deciding interferences. The PTAB was previously referred to as the Board of Patent Appeals and Interferences and was renamed by the AIA.
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What Is Trademark Infringement?
Trademark infringement is defined as the unauthorized use of a trademark or service mark. This use can be in connection with goods or services and may lead to confusion, deception, or a misunderstanding about the actual company a product or service came from. Trademark owners can take legal action if they believe their marks are being infringed. If infringement of a trademark is proven, a court order can prevent a defendant from using the mark, and the owner may be awarded monetary relief.
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The United States Patent and Trademark Office refers to a trade secret as a type of intellectual property. This definition of trade secret is in reference to the business ownership of a formula, pattern, compilation, program, device, method, technique, or process that provides a competitive edge. As a member of the World Trade Organization, the U.S. government has a responsibility to protect trade secrets. The passage of the Defend Trade Secrets Act of 2016 (DTSA) also increased trade secret protection. Under the DTSA, an individual or organization may be found liable in a civil case for the misappropriation of trade secrets.