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Professionals 232 results
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Practice Area
Tax Controversy & Criminal Tax
Our Tax Controversy attorneys advise and represent clients in every aspect of federal and state tax investigations, as well as the criminal tax enforcement process. This includes the Internal Revenue Service’s (IRS) multi-jurisdictional examinations and administrative appeals, U.S. Competent Authority representations, post appeals mediation, and trial court and appellate litigation in every federal court hearing a tax matter.
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.
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).
Experience 20 results
Experience
|March 4, 2026
End of the Line: Winston Wins Unanimous Supreme Court Victory Against NJ Transit
In a unanimous decision authored by Justice Sotomayor, the U.S. Supreme Court held that NJ Transit is not an arm of the State of New Jersey and therefore is not entitled to sovereign immunity. The ruling means that plaintiffs injured by NJ Transit outside of New Jersey—such as in Pennsylvania and New York—may pursue claims in the courts of the states where their injuries occurred. The court adopted Winston’s position that state-created corporations that are formally liable for their own judgments are not arms of the state, reversing the Pennsylvania Supreme Court’s dismissal of Cedric Galette’s negligence suit while affirming the New York Court of Appeals’ decision allowing Jeffrey Colt’s case to proceed.
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
|July 30, 2025
Represent Norman W. Fries, Inc. d/b/a Claxton Poultry Farms in a series of 15+ antitrust class actions consolidated in the Northern District of Illinois and brought by plaintiffs who allege that Claxton and the nation’s other largest poultry producers conspired to fix the price of broiler chickens in a scheme from 2008 to 2016 that raised the price for broiler chickens by artificially reducing supply.
Insights & News 1,042 results
In the Media
|April 10, 2026
|2 Min Read
Ashley Chung Joins Winston in Chicago
Winston & Strawn recently announced that Ashley Chung has rejoined the firm’s Chicago office as a partner in the Litigation Department and a member of its Appellate & Critical Motions practice after serving as an Assistant U.S. Attorney. During her tenure at the U.S. Attorney’s Office for the Northern District of Illinois, Ashley prosecuted more than 50 cases, including public corruption, financial fraud, money laundering, child exploitation, and violent crime matters. She oversaw and determined strategy from the investigative stage through charging, pre-trial litigation, plea negotiations or trials, and sentencings. Prior to her public service, Ashley worked on complex commercial litigation, white-collar and regulatory-facing matters, and internal investigations.
Investigations, Enforcement, & Compliance Alerts
|April 8, 2026
|4 Min Read
Court Ruling Curtails Administration’s Ability to Terminate Grants Based on New Priorities
On March 24, 2026, the U.S. District Court for the Northern District of Illinois decided that federal grantees can challenge grant terminations by the Administration if at the time of termination the grantees were compliant with Administration policies that were in place at the time the grant was awarded, as opposed to new rules or policies subsequently imposed by the Trump Administration. This decision could aid federal contractors and grantees in their legal challenges to the numerous contract and grant terminations, which have occurred since January 2025, based on alleged failure of the contracts or grants to align with or effectuate new Administration programs, policies, goals, and/or priorities, including, but not limited to, those relating to diversity, equity and inclusion (DEI) programs and policies.
Article
|April 7, 2026
|9 Min Read
Justices’ Ruling Stresses Quick Action Against Absconders
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.
Other Results 22 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.
Location
Launched in 2013, Winston & Strawn’s Silicon Valley office is home to nationally recognized attorneys that draw clients from Fortune 500 companies, startups, and everything in between. Led by Kelly Hunsaker—who has deep roots in Silicon Valley spanning nearly three decades—the office draws from the firm’s deep bench strength and global network of resources to serve clients in a variety of industries, including the semiconductor, computer hardware and software, telecommunications, life sciences, and pharmaceutical sectors. The office’s intellectual property attorneys have litigated extensively in all the top national patent litigation venues, as well as before the International Trade Commission and the Patent Trial and Appeals Board of the USPTO.