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  • Professionals (698)
  • Capabilities (89)
  • Experience (36)
  • Insights & News (4,610)
  • Other Results (70)

Professionals 698 results

Angela M. Machala
Angela M. Machala
Partner
  • Los Angeles
Email
+1 213-615-1997
vCard

Partner

  • Los Angeles
Nimalka Wickramasekera
Nimalka Wickramasekera
Partner
  • Los Angeles, 
  • Silicon Valley
Email
+1 213-615-1819
vCard

Partner

  • Los Angeles
  • Silicon Valley
Angel A. Grimaldi
Angel A. Grimaldi
Associate
  • Los Angeles
Email
+1 213-615-1830
vCard

Associate

  • Los Angeles
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Capabilities 89 results

Practice Area

Patent Litigation

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)....Read more

Practice Area

Intellectual Property

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....Read more

Practice Area

Financial Restructuring

Winston is a global powerhouse in the financial restructuring space. We offer a fully integrated team of attorneys across a global platform to guide clients through any distressed situation, whether the client is a savvy and interested investor, a creditor seeking to maximize its recovery, or a company aiming to proceed through a successful yet complex restructuring. We have advised stakeholders in some of the highest-profile restructurings and bankruptcy cases in the United States and beyond, including Caesars Entertainment, ResCap, the Los Angeles Dodgers, Enron, Lehman Brothers, Pacific Gas & Electric, LATAM Airlines, and the Commonwealth of Puerto Rico, among others. ...Read more

Experience 36 results

Experience

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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....Read more

Experience

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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....Read more

Experience

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April 30, 2025

Federal Circuit Backs PayPal

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....Read more
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Insights & News 4,610 results

Client Alert

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October 20, 2025

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7 Min Read

Florida’s De-Banking Rules Expansion: How Do the Office of Financial Regulation’s Proposed Rule Changes Impact Financial Institutions?

Winston is closely monitoring de-banking regulations and advising global financial institutions on customer onboarding and due diligence, including, more recently, issues relating to anti-debanking and anti-derisking legislative and regulatory developments. As federal and state governmental scrutiny of debanking practices intensifies, our attorneys are at the forefront, providing our clients with practical, business-focused solutions to help them navigate this complex and rapidly changing environment.

In this alert, Carl Fornaris and Fernanda Legaspe examine the Florida Financial Services Commission’s recent approval of the Florida Office of Financial Regulation’s (OFR) request to publish notices of proposed rulemaking to clarify and implement procedures under Florida House Bill 989 (HB 989). They break down what’s changing, where state and federal requirements may conflict, and concrete steps to shore up governance, documentation, and cross‑functional controls.
Following the Florida Financial Services Commission’s approval of the Florida OFR’s request to publish notices of proposed rulemaking to clarify and implement procedures under Florida’s HB 989, Florida regulators have moved to significantly expand the state’s anti–de-banking framework—reaching who may file a complaint, what can be alleged, and who must certify compliance. The OFR’s proposed rules would require an executive officer to sign the annual attestation, broaden the definition of customer to capture vendors and other business relationships, and heighten expectations around citing suspicious activity as a basis for adverse actions—raising potential tensions with federal suspicious activity report confidentiality.

In the Media

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October 20, 2025

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1 Min Read

William Logan Discusses Texas Appeals Court’s Ruling Protecting Transgender Patients’ Medical Privacy with Law360

Winston & Strawn associate William Logan was quoted in a Law360 article following a significant decision by the Texas Fifteenth Court of Appeals, which granted mandamus relief to nonparty patients seeking to protect their private medical records in a lawsuit concerning gender-affirming care. Winston represents the patients in opposing the State’s overly broad requests to secure their medical information. The appellate court directed a lower court to withdraw its order requiring two Dallas hospitals to produce documents related to the care of transgender patients, finding that the lower court had abused its discretion....Read more

Client Alert

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October 16, 2025

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5 Min Read

OIG Issues Advisory Opinion on Contributions to Charitable Foundations for Therapy Services

On September 11, 2025, the U.S. Department of Health and Human Services Office of Inspector General (the OIG) issued a favorable advisory opinion (AO 25-10 or the Opinion) regarding an arrangement between a healthcare services company (the Company) and a charitable foundation (the Foundation), whereby the Company makes financial contributions to the Foundation, which then provides grants to families of children receiving a particular type of therapy (the Arrangement). Pursuant to AO 25-10, the OIG will not impose sanctions with respect to the Arrangement, despite the Arrangement potentially generating prohibited remuneration under the federal Anti-Kickback Statute (the AKS) and implicating the civil monetary penalty provision prohibiting inducements to beneficiaries (the Beneficiary Inducements CMP).

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Other Results 70 results

Location

Los Angeles

Serving one of the world’s largest economies for over 20 years, Winston & Strawn’s Los Angeles office is home to more than 100 lawyers and business professionals. Under the guidance of Office Managing Partner Angela Machala, our L.A. office thrives as a dynamic and tightly knit community with an inclusive culture in which its members from all backgrounds, experiences, and perspectives collaborate closely to support each other’s success and achieve their clients’ goals. Our L.A. lawyers—who are equally split between litigation and transactional work—advise 80+ Fortune 500 companies, which is a testament to the collaborative environment we’ve created to provide exceptional legal services....Read more

Experienced Attorneys

Law Glossary

What Is the Patent Dance?

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....Read more
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