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Professionals 760 results
Capabilities 89 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 56 results
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
|May 15, 2025
Winston Secures Federal Circuit Victory for Snap Axing Image-Presentation Patents on the Pleadings
Ask Sydney sued Snap along with four large tech companies in the Western District of Texas, Waco Division, asserting infringement of two related patents on methods of generating and presenting images to a user to determine the user’s interest. Working closely with Snap, Winston successfully moved to transfer the case to the Central District of California, then moved for judgment on the pleadings of patent-ineligibility under § 101 of the Patent Act. Following a hearing with multiple rounds of argument, the district court granted the motion, adopting Winston’s arguments that distinguished findings by the patent examiner during prosecution and by the Western District of Texas, which had denied § 101 motions brought by two other defendants. Ask Sydney appealed, but the Federal Circuit summarily affirmed three days after oral argument, handing Snap a decisive win invalidating all claims of both asserted patents. Eimeric Reig led the strategy and argued the appeal and motion hearing, working with Kathi Vidal and Kelly Hunsaker.
Experience
|April 30, 2025
In December 2022, Winston convinced Judge Albright of the W.D. Tex. to reverse his tentative construction and invalidate four patents based on means-plus-function indefiniteness at claim construction in the district court. Winston also persuaded Judge Albright to deny Fintiv’s motion for reconsideration the next month. Fintiv appealed to the Federal Circuit, which affirmed the district court in a precedential opinion in April 2025. Winston overcame a significant amount of sleight of hand from Fintiv, which continually shifted the purported structure of the “payment handler” term through claim construction, its motion for reconsideration, and appellate briefs, muddying the record. Ultimately the opinion clearly distinguished the factual record from that in Dyfan v. Target, curbing patentees abilities to argue that all code or applications are a “class of structures” and not indefinite under 112(f). The Federal Circuit affirmed four of the five patents Winston invalidated for PayPal, effectively foreclosing Fintiv’s ability to revive these patents for assertion. Winston also invalidated the fifth patent at the PTAB; Fintiv’s appeal of that Final Written Decision is pending.
Insights & News 6,022 results
False Claims Act Playbook
|October 30, 2025
|5 Min Read
On October 15, 2025, the United States District Court for the District of Nebraska (the Court) dismissed Pharos Capital Group and its related investment funds (Pharos Capital) from a qui tam or whistleblower suit brought under the antiretaliation provision of the False Claims Act (31 U.S.C. § 3730(h)) (the FCA), against Pharos Capital and Charter Health Care Group (Charter), a portfolio company of Pharos Capital.
Recognitions
|October 30, 2025
|Less Than 1 Min Read
Winston & Strawn Recognized in 2026 Benchmark Litigation
Winston & Strawn has been recognized in the 2026 edition of Benchmark Litigation, which covers the litigation and disputes market in North America. The firm is recognized for its excellence in litigation in the following categories:
Client Alert
|October 29, 2025
|7 Min Read
On October 14, 2025, the Florida Office of Financial Regulation (OFR) published a notice of proposed rulemaking (Notice) to amend certain of its existing anti-debanking rules that implement Florida House Bill 989 (HB 989), which became effective July 1, 2024, and amended Section 655.0323 of the Florida Statutes. If adopted into final form, the proposed amendments would amend Florida Administrative Code Rule 69U-100.323 (Annual Attestation of Compliance) and Rule 69U-100.3231 (Complaint Process Rule).
Other Results 72 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.