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Professionals 712 results
Capabilities 91 results
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
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.
Practice Area
Winston & Strawn’s private equity attorneys provide strategic advice and legal counsel to middle-market private equity funds, hedge funds, family offices, real estate funds, alternative asset managers, portfolio companies, and institutional investors. We have one of the broadest and most active national middle-market private equity practices in the U.S.
Experience 59 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 6, 2026
Brightwood Capital’s Acquisition of Museum of Illusions Group
A team led by Bradley Vaiana and Austin Leach represented Brightwood Capital Advisors, LLC (“Brightwood”), a New York–based investment firm, in its acquisition of Museum of Illusions Group, the world’s largest privately held chain of museums, from Invera Capital Partners. As part of the transaction, five previously franchised locations will transition from the chain’s largest franchisee, LOL Entertainment, to become corporate-owned sites. Winston attorneys across multiple practice areas and offices, including M&A, Tax, Intellectual Property, Employee Benefits, and the firm’s UK office, assisted in structuring a complex cross-border transaction to support Brightwood's fund investment goals. The acquisitions were completed on January 6, 2026.
Experience
|November 7, 2025
Precision Aviation Group - Acquisition of Helicopter Engine Repair Overhaul Services
A team led by Austin Leach and Justin Levy represented Precision Aviation Group (PAG) in its acquisition of H.E.R.O.S., a premier Rolls-Royce M250/RR300 engine MRO provider, and its affiliate, Hye-Tech Manufacturing.
Insights & News 5,833 results
Competition Corner
|April 29, 2026
|10+ Min Read
Recent settlements in DOJ antitrust enforcement actions have raised concerns on Capitol Hill and beyond about the adequacy of current safeguards governing the settlement of federal antitrust cases.
In the Media
|April 27, 2026
|Less Than 1 Min Read
Matt Graves Discusses White Collar Enforcement Trends with Financial Times
Winston & Strawn partner Matt Graves was quoted in a Financial Times article discussing current trends in U.S. white collar enforcement. In 2025, white collar prosecutions reached their lowest level since at least 1986, according to data from the Transactional Records Access Clearinghouse, amid a combination of shifting enforcement priorities, reduced staffing across government agencies, and evolving approaches to corporate and financial crime.
In the Media
|April 24, 2026
|1 Min Read
The American Lawyer Spotlights Winston’s Momentum with Six Partner Additions
Winston was featured in The American Lawyer following the firm’s addition of six lateral partners across Chicago, New York, Washington, D.C., and Dallas in April, further strengthening key practices including leveraged finance, investigations, intellectual property, and appellate litigation.
Other Results 70 results
Location
Founded in 1853, Winston & Strawn is one of the largest and oldest law firms in Chicago. The office is home to 290+ lawyers distributed across 20 practice areas. Our Chicago lawyers represent 90 companies in the Fortune 500 and are recognized in all the major directories and award competitions. They also are heavily invested in pro bono causes, having dedicated 19,000+ hours in 2024 to various pro bono organizations. Representing a wide range of backgrounds, experiences, and perspectives, they are hardworking, compassionate, and collaborative. Our Chicago office also takes immense pride in fostering a collegial atmosphere that influences every aspect of our culture. From weekly Starbucks Socials, where colleagues gather to connect over coffee and conversation, to ping pong tournaments that ignite friendly competition, to volunteer opportunities around the city, we celebrate the camaraderie and sense of community that unite us. This not only enhances collaboration and teamwork but creates a supportive environment that inspires us to excel in our professional pursuits.
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.