David A. Perlson | San Francisco | Hogan Lovells

David A. Perlson

Partner Intellectual Property

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David A. Perlson
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  • Overview
  • Experience
  • Credentials
  • Insights and events

David Perlson is a partner in Hogan Lovell’s San Francisco office.  He is an experienced trial and appellate lawyer specializing in intellectual property and commercial litigation and practices extensively in patent, antitrust, trade secret, and class action litigation.  Mr. Perlson has successfully tried many cases to verdict over the course of his career and won numerous cases on dispositive motions before trial.  He also plays an active role in the firm’s appellate practice and has argued several winning appeals at the Federal Circuit.  

Mr. Perlson has substantial experience representing companies in a wide range of industries, including Internet, digital media, life sciences, gaming, financial services, and other technology fields—specifically litigation in connection with smartphones and other mobile devices.  

Representative experience

Represented Waymo in a trade secrets case related to autonomous driving technology. The parties settled during trial, granting Waymo equity in the defendant (valued at US$245 million) and injunctive relief. *

Secured US$333.8M for Complete Genomics in a patent case against Illumina in Delaware. Jury found Illumina infringed CGI's patents and invalidated Illumina's patents regarding gene sequencing.*

Obtained defense verdict for Google in EDTEX against Personalized Media Communications, who alleged infringement of four patents by YouTube’s content delivery system.  PMC sought US$183 million.*

In Delaware, obtained a complete defense verdict for Google in a patent infringement action in which plaintiff Personalized User Model accused Google’s search, advertising, and YouTube systems.*

Obtained defense verdict in EDTEX for Google in patent infringement action brought by Bright Response accusing Google search and advertising systems.  Plaintiff sought US$120 million in damages. *

Represented Samsung, HTC, Motorola Mobility and Google against French digital security company Gemalto. Obtained summary judgment of non-infringement and argued winning appeal before Federal Circuit.*

Obtained summary judgment of non-infringement and invalidity in SDCA for Google, where plaintiff Impact Engine alleged various Google advertising products infringed eight patents. *

In EDVA, obtained laches finding at trial trimming US$400+ million in alleged damages sought by plaintiff IP Engine against Google; argued and obtained reversal of plaintiff’s verdict on appeal. *

Represented RealNetworks in a patent case where the Court granted summary judgment of invalidity, one of the first decisions applying the Supreme Court's KSR v. Teleflex ruling. *

In Brite Smart v. Google, obtained an unprecedented writ of mandamus directing EDTEX court to rule on a pending transfer motion. Following transfer, obtained dismissal of all claims.*

Won summary judgment of invalidity for Google against Paid Search Engine Tools in EDTEX, who accused Google's advertising systems.  Argued and obtained  affirmance before Federal Circuit. *

Represented Bally Technologies in a case with Shuffle Master and International Gaming Technology relating to casino table game patents. Secured summary judgment of non-infringement and obviousness. *

Obtained summary judgment in EDVA in case where plaintiff Bid for Position sought over US$150 million in damages claiming infringement by Google’s advertising services.  *

Obtained summary judgment for Google in EDTX in patent infringement action brought Performance Pricing accusing Google’s advertising systems.  Argued and obtained  affirmance before Federal Circuit. *

Obtained summary judgment of non-infringement for Google in EDTEX in patent infringement action brought by PA Advisors accusing personalized search.  *

Represented Bancorp Services in a trade secret and confidentiality breach case against The Hartford. After a two-week trial, the St. Louis jury awarded Bancorp $118 million in under a day. *

*Matter handled prior to joining Hogan Lovells.

Credentials

Education
  • Juris Doctor, Northwestern Pritzker School of Law, cum laude, 1996
  • B.A., Political Science, University of Wisconsin, 1993
Bar admissions and qualifications
  • California
Court admissions
  • U.S. Supreme Court
  • U.S. Court of Appeals, Federal Circuit
  • U.S. Court of Appeals, Ninth Circuit
  • U.S. District Court, Northern District of California
  • U.S. District Court, Eastern District of Texas

Recognition

Leading Litigators in America, IP & Commercial Litigation, Appellate

Lawdragon 500

2024-2025
MVP

Law360

2022
Litigator of the Week

Law360

2020