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  • Professionals (170)
  • Capabilities (35)
  • Experience (15)
  • Insights & News (1,115)
  • Other Results (31)

Professionals 170 results

David Enzminger
David Enzminger
Partner
  • Los Angeles, 
  • Silicon Valley
Email
+1 213-615-1780
vCard

Partner

  • Los Angeles
  • Silicon Valley
Danielle Williams
Danielle Williams
Partner
  • Charlotte
Email
+1 704-350-7790
vCard

Partner

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

Partner

  • Los Angeles
  • Silicon Valley
View All Professionals

Capabilities 35 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

ITC – Section 337

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....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

Experience 15 results

Experience

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May 15, 2025

Winston Secures Federal Circuit Victory for Snap Axing Image-Presentation Patents on the Pleadings

Experience

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April 30, 2025

Federal Circuit Backs PayPal

Experience

|

August 15, 2024

Winston Achieves Historic No-Damages Summary Judgment for Microsoft in Patent Case

View All Experience

Insights & News 1,115 results

Client Alert

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June 13, 2025

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2 Min Read

Federal Circuit Reverses US$200M+ Jury Verdicts Because Asserted Claims Are Unpatentable Under § 101

According to 35 U.S.C. § 101, “any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof” may be patentable. Courts and litigants often struggle in determining what falls outside this scope—i.e., what is unpatentable subject matter. The Federal Circuit Court of Appeals dealt with this issue in a series of appeals between USAA v. PNC Bank (CAFC Nos. 2023-1639, 2023-1778, 2023-1866, 2025-1276, 2025-1277, and 2025-1341), held that the claims in the patents at issue recite unpatentable subject matter, and reversed the entries of judgment for the US$218M and US$4.3M jury verdicts that issued out of the Eastern District of Texas.

Recognitions

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June 12, 2025

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1 Min Read

Winston & Strawn Recognized in The Legal 500 U.S. 2025

Winston & Strawn is recognized as a top-tier firm in five areas and recommended in an additional 45 categories in the 2025 edition of The Legal 500 U.S. In addition, eight lawyers are listed in the Hall of Fame, four lawyers are recognized as Leading Trial Lawyers, 16 partners were ranked as Leading Partners, four associates are ranked as Leading Associates, one partner is ranked as a Leading Lawyer, five lawyers are recognized as Next Generation Partners, and two lawyers are listed as Rising Stars. A total of 186 lawyers are mentioned by name in Legal 500 United States commentary for their standout contribution to respective practices....Read more

Client Alert

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June 10, 2025

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3 Min Read

PTAB Acting Director Denies IPR Merely Because Petitioner Knew of the Challenged Patent Over a Decade Ago

We previously reported how the PTAB’s institution rate has fallen to approximately 40% in the new administration, with many of those denials stemming from the PTAB’s increased usage of its discretionary denial processes to deny IPR challenges without otherwise addressing the merits of the identified prior art. The latest grant of discretionary denial continues that trend and exemplifies the current challenges in pursuing IPR/PGR invalidity challenges at the U.S. Patent Office. 

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Other Results 31 results

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

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....Read more

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....Read more
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