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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
Our nationally recognized Appellate & Critical Motions (ACM) Practice delivers sophisticated legal advocacy and analysis before trial, at trial, and on appeal. From state trial courts to the U.S. Supreme Court, our ACM attorneys identify, preserve, and present the critical legal issues that can make the difference between winning and losing.
Experience 133 results
Experience
|February 4, 2026
A Winston & Strawn deal team led by Partners Justin Levy in New York and Paul Amiss in London advised Aeron Defense, a newly formed defense platform established by Ventus Industrial Partners in partnership with GenNx360 Capital Partners and Admiralty Partners, on its acquisition of defense contracting specialists General Tool Company and Magna Machine Company.
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
|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.
Insights & News 4,470 results
Client Alert
|February 9, 2026
|4 Min Read
On December 29, 2025, the American Institute of Certified Public Accountants (AICPA) Professional Ethics Executive Committee (PEEC) released an exposure draft proposing substantial revisions to its Code of Professional Conduct governing alternative practice structures (APS), which govern investments in accounting firms by private and public investors. The proposals represent the most significant regulatory development for private equity-backed accounting firms since PEEC first adopted APS guidance in 2000. This exposure draft follows a March 2025 discussion memorandum that resulted in the submission of 36 comment letters and extensive stakeholder engagement from accounting firm executives, state boards of accountancy, insurance liability carriers, accounting firms, academia, professional associations, and legal counsel for private equity sponsors.
In the Media
|February 5, 2026
|1 Min Read
Winston & Strawn partners Brett Johnson and Jordan Klein were featured in a Texas Lawyer article where they discussed their recent elevation to co-managing partners of the firm’s Dallas office.
Press Release
|February 5, 2026
|1 Min Read
Winston & Strawn Appoints Brett Johnson as Co-Chair of Litigation Department
Chicago – February 5, 2026 – Winston & Strawn LLP today announced the appointment of Brett Johnson as Co-Chair of the firm’s Litigation Department, serving alongside Linda Coberly, who assumed the role in 2024. Together, they will guide the continued growth and strategic direction of the firm’s world-class litigation practice.Brett previously served as Litigation Office Head in Dallas and will continue in his role as Co-Office Managing Partner of the Dallas office. With a focus on trials and arbitration of high-risk, complex matters, Brett’s practice emphasizes all aspects of intellectual property and complex commercial litigation, including patent, trade secret, unfair competition, consumer class actions, and breach of fiduciary duties. “Brett is a gifted storyteller and advocate with extensive trial experience and, together with Linda, exemplifies the excellence and collaborative leadership that define our Litigation Department,” said Chairman Steve D’Amore. “We are excited to see them lead the department as the firm continues to expand our litigation services to clients globally.”
Other Results 68 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.
Law Glossary
What Is an Inter Partes Review (IPR)?
An inter partes review of a patent is a type of administrative trial proceeding. Inter partes review became available in 2012 and replaced inter partes reexamination as a way to challenge patentability at the Patent Office. Any person who is not the owner of a patent can file a petition for a review of a patent. The Patent Trial and Appeal Board (PTAB) will act on the petition either instituting a trial or denying institution of a trial. This will occur a little over six months after the petition is filed. If trial is instituted, the proceeding will, with some limited exceptions, be resolved within one year.
Law Glossary
What Is the Copyright Royalty Board?
The U.S. Copyright Royalty Board (CRB) is a three-judge panel that functions as an independent unit within the Library of Congress. It performs the duties specified in the Copyright Royalty and Distribution Reform Act. The Act established statutory licenses that let approved parties utilize certain types of copyrighted works by paying a set royalty, without having to request an individual copyright license from each rights-holder. The CRB sets, and periodically adjusts, the rates and terms of the statutory licenses, and can also make determinations on the distribution of statutory license royalties collected by the U.S. Copyright Office. For example, the judges can determine, for a five-year period, the rates musical performers receive when their works are played via digital services. When licensors and licensees cannot reach rate agreements on their own, the CRB hears testimony from the various parties and then sets the rates. CRB Judges serve six-year terms. The first CRB judges were appointed by the Librarian of Congress in 2006.