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Practice Area
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).
Practice Area
Trial skills matter—even in a world where few disputes ever see the inside of a courtroom. Winston has built a reputation as a trial lawyers’ firm, featuring seasoned litigators who leverage extensive courtroom experience to meet our clients’ business and legal objectives. Our long history of taking cases to trial—and winning—provides our clients with tremendous settlement leverage with their adversaries, as well as a substantial likelihood of a favorable resolution if, and when, they go to trial.
Practice Area
Experience 243 results
Experience
|January 27, 2026
Winston & Strawn secured a decisive victory for PayPal in an intellectual property dispute brought by Irish non-practicing entity Internet Payment Patents LTD (IPPL). Magistrate Judge Susan van Keulen of the Northern District of California entered final judgment in PayPal’s favor, finding all asserted patent claims ineligible under 35 U.S.C. § 101 and granting PayPal’s motion to dismiss without leave to amend.
Experience
|January 22, 2026
Advised SQM on US$600M offering of subordinated capital notes due 2056 (Hybrid Bond Offering)
Winston & Strawn LLP advised longstanding client Sociedad Química y Minera de Chile S.A. (“SQM”) (NYSE: SQM) on its US$600 million offering of subordinated capital notes. The notes were offered in the United States pursuant to Rule 144A and outside the United States pursuant to Regulation S.The subordinated capital notes are due in 2056 and constitute SQM’s first international hybrid bond issuance, structured to be consistent with SQM’s recent UF 10 million (approximately US$ 430 million) Series S hybrid-subordinated bond issuance in the Chilean securities market. The notes bear an initial annual interest rate of 5.625% and are subject to reset on April 22, 2031 (the “First Reset Date”), and on every fifth anniversary thereafter, based on a spread over the 5-year U.S. Treasury bond rate, with interest rate step-ups on the fifth and twentieth anniversaries of the First Reset Date. The transaction closed on January 22, 2026.BofA Securities, Inc., Goldman Sachs & Co. LLC, J.P. Morgan Securities LLC, Santander US Capital Markets LLC, and Scotia Capital (USA) Inc. acted as initial purchasers of the notes.Link Capital Partners was financial advisor to SQM.SQM is a global company with a leading position in the lithium, iodine, and potassium nitrate markets. It develops and produces a diverse range of products for industries essential to human progress, including health, nutrition, renewable energy, and technology, driven by innovation and technological development.The Winston & Strawn team advising on the transaction included corporate partner Sey-Hyo Lee (New York) and foreign legal advisor Bruno M. Fiorino (New York). Partner Katherine Erbeznik (New York) advised on tax matters.
Experience
|January 19, 2026
Winston Advises smartTrade Technologies Group on the Acquisition of kACE
A cross-border team from advised smartTrade Technologies Group (“smartTrade”), a leading provider of multi-asset electronic trading and payments solutions, on its acquisition of kACE Financial (“kACE”), formerly known as Fenics, a well-established provider of technology solutions for FX and interest rate derivatives pricing, analytics, and workflow management.
Insights & News 5,654 results
Recognitions
|February 19, 2026
|Less Than 1 Min Read
Winston Ranked Among the Top Ten Firms for Patent Litigation by Patexia
Winston & Strawn was recognized among the top ten law firms for patent litigation in Patexia’s 2026 Patent Litigation Report. The ranking is based on both activity and performance.
In the Media
|February 19, 2026
|2 Min Read
The Chicago Lawyer Showcases Winston’s New Chicago Office
Winston & Strawn Chairman Steve D’Amore and Chicago Office Managing Partner Bill O’Neil were featured in a Chicago Lawyer article highlighting the firm’s new Chicago office at 300 N. LaSalle. Designed to be modern, sustainable, and cutting-edge, the space provides an atmosphere that invites collaboration and creativity, as well as a place to break bread and socialize. A central feature of the new office is a café that serves as a gathering hub with varied seating for attorneys and staff, encouraging conversation. The space transforms weekly into a space for happy hour and informal connection.
Global Trade & Foreign Policy Insights
|February 19, 2026
|9 Min Read
United States Issues Significant New Sanctions Relief for Venezuela’s Oil & Gas Sector
Although Venezuela remains subject to sanctions targeting the Government of Venezuela (GoV) and entities in which it holds a 50% or greater ownership interest, the U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC) has issued a series of General Licenses (GLs) representing the broadest easing of Venezuela-related sanctions in years.
Other Results 132 results
Site Content
Law Glossary
What Is Advertising Litigation?
Advertising litigation is defined as the legal area that covers false or deceptive advertising cases. Lawsuits may be brought by government agencies or corporate competitors based on the Lanham Act—a law that specifically deals with false advertising. The Act outlines how an advertisement can be deemed false. The Federal Trade Commission (FTC) has the ability to file lawsuits to halt deceptive advertising claims. The U.S. Food and Drug Administration may also pursue advertising litigation against violators of government regulations. Companies may be called on to substantiate their advertising claims, whether these are made in print or online.