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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
The United States International Trade Commission (ITC) is an increasingly popular venue for patent infringement litigation. More and more companies are seeking to halt importations of infringing products into the United States by turning to the ITC for expedited relief. Section 337 investigations conducted by the ITC provide complainants with a “fast track” to remedy IP matters that typically go to trial within 10 months. Since many Section 337 cases go to trial, selecting an ITC litigation team with a command of the technology, patent law, and specialized procedural practice is extremely important. We have handled more than 100 cases before the ITC.
Practice Area
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 29 results
Experience
|September 8, 2025
Winston represents a class of professional swimmers alleging World Aquatics (WA) violated antitrust laws by blocking their participation in the competing International Swimming League. After WA won summary judgment, Winston successfully appealed, arguing the court applied improper antitrust standards and wrongly denied certification of a damages class. In September 2024, the Ninth Circuit reversed both rulings, reviving all claims and issuing a landmark ruling on the possible application of the per se rule or quick look review to sports-associations rules. Am Law awarded Winston “Litigator of the Week” Runner-Up recognition for the win. In November 2024, the Ninth Circuit denied rehearing. In April 2025, the district court certified a damages class.
Experience
|June 25, 2025
Winston Secures Federal Circuit Affirmance of 101 Victory for Polycom
Winston secured an appellate victory for Polycom (now part of HP) when the Federal Circuit affirmed a judgment on the pleadings of patent-ineligibility in a lawsuit brought by directPacket Research, Inc. Working closely with HP, Winston argued that all claims of the asserted patent were directed to the abstract idea of translation via an intermediate protocol, with no inventive concept. The Northern District of California agreed, and the Federal Circuit unanimously affirmed, adopting Winston’s arguments. Eimeric Reig argued the appeal, working with HP and the Winston team, including Kathi Vidal, Kelly Hunsaker, Sam Lerner, Matt McCullough, and David Dalke.
Experience
|June 8, 2025
Secured, with co-counsel, final approval of an historic settlement of over US$2.75B in back-damages for current and former college-athletes and a new revenue-sharing model allowing schools to share future earnings with athletes. This decade-long effort across four different lawsuits redefines the economics of college sports, affirming athlete rights and fair compensation. Following a 9-0 Supreme Court victory in Alston v. NCAA, the team filed three antitrust class actions, resulting in a groundbreaking settlement that creates a revenue-sharing system projected to generate at least US$20B in new, previously prohibited payments and benefits to Division I college athletes over the next decade. The settlement was recognized in Am Law‘s Litigator of the Week column.
Insights & News 1,681 results
Press Release
|January 28, 2026
|1 Min Read
Winston & Strawn Names Managing Partners for Key Firm Offices
Chicago—January 28, 2026—Winston & Strawn LLP has elevated three proven leaders to managing partner roles in Charlotte and Dallas, underscoring the firm’s continued strategic growth.
Article
|January 27, 2026
|6 Min Read
UK Class Actions Appear Set For Resurgence in 2026
This article was originally published in Law360. Any opinions in this article are not those of Winston & Strawn or its clients. The opinions in this article are the authors’ opinions only.
Client Alert
|January 13, 2026
|7 Min Read
Key California Labor and Employment Updates for 2026
New California employment statutes include significant changes that will reshape employment agreements, pay equity compliance, notice practices, data governance, and leave administration. Below we summarize the statutes most likely to affect multi-state and California employers beginning January 1, 2026, highlight near-term implementation steps, and flag forward-looking changes coming in 2027 and beyond.
Other Results 33 results
Law Glossary
Colloquially referred to as the “patent dance,” the BPCIA provides a framework that includes certain steps and a schedule during which the applicant and reference product sponsor exchange confidential information disclosed in the aBLA. During the patent dance, the applicant and sponsor identify the patents that could be litigated in the future during two potential phases of litigation. In the first phase, the sponsor can allege infringement of a subset of the patents identified during the patent dance. The second phase begins after the sponsor receives the Notice of Commercial Marketing from the applicant. During this second phase, the sponsor can assert any remaining patents that were not asserted in the first phase.
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 Are the Patent Litigation Differences Between the BPCIA and Hatch-Waxman Act?
There are fundamental differences between the abbreviated approval processes to obtain FDA approval for biosimilars and generic drugs as those processes relate to patent litigation.