S.Giri Pathmanaban

Silicon Valley
  • 140 Scott Drive
  • Menlo Park, CA 94025
  • USA

Giri Pathmanaban is a partner in the Silicon Valley office of Latham & Watkins. His practice focuses on intellectual property litigation and has included actions pending before federal district courts across the US and the International Trade Commission.

Mr. Pathmanaban received his BE in Computer Science and Engineering from PSG College of Technology, India, his MS in Information Sciences from the University of Michigan, and his JD from Columbia Law School, where he was a Harlan Fiske Stone Scholar and a member of the Columbia Science and Technology Law Review.

Mr. Pathmanaban’s experience extends to all aspects of litigation, including:

  • Development and implementation of case strategy  
  • Arguing motions and claim construction hearings
  • Argued several trial hearings at the PTAB
  • Dispositive and non-dispositive motions  
  • Trial

In Patent Office proceedings, Mr. Pathmanaban has argued final trial hearings that led to invalidation of the challenged patents.

These cases, proceedings, and appeals have involved a variety of industries and technologies relating to medical devices, computer networking, backup storage technology, semiconductors, lighting control technology, the internet, and data security. In appellate matters, Mr. Pathmanaban has drafted briefs and assisted with oral argument preparation.

Mr. Pathmanaban is admitted to practice before the United States Patent and Trademark Office (USPTO).

Mr. Pathmanaban's representative experience includes:

  • Representing a leading consumer electronics corporation in a five patent case related to speech coding technology.
  • Delphix Corp. v. Actifio, Inc. (N.D. Cal.) (D. Mass): Representing Actifio in a nine-patent case involving two jurisdictions. Case settled favorably after Delphix’s patents were invalidated in IPR proceedings.
  • Delphix Corp. v. Actifio, Inc. (PTAB): Argued final trial hearings in IPR proceedings that ultimately led to invalidating Delphix’s five patents.
Representative Prior Matters
  • Monsanto Company v. DuPont Pioneer (MOED): Represented Monsanto Company, a global provider of agricultural products for farmers, in a sixteen-patent case relating to Monsanto’s seed development technology that enables the convergence of plant breeding and biotechnology.
  • United Video Properties, Inc. v. Amazon.com, Inc. (Fed. Cir.): Drafted brief and helped prepare for oral argument for Amazon, and helped secure affirmance of non-infringement by Federal Circuit.
  • OIP Technologies v. Amazon.com, Inc. (N.D. Cal.): Secured dismissal of a patent case against Amazon.com related to automated pricing for goods sold online. The court granted Latham's motion to dismiss all 62 patent claims for failure to claim patentable subject matter under 35 U.S.C. § 101. The dismissal was affirmed on appeal.
  • Pioneer DuPont v. Monsanto Co. (IASD): Represented Monsanto in patent infringement case relating to corn seed manufacturing technology. Case settled on highly favorable terms to Monsanto following claim construction briefing.
  • Clouding IP v. Oracle Corporation (D. Del.): Represented Oracle in a multi-patent lawsuit related to cloud computing technology. Case settled on favorable terms.
  • Lutron Electronics v. Crestron Electronics (D. Utah): Represented Lutron in a patent- and copyright infringement action against Crestron Electronics relating to lighting control technology. Helped obtain a highly-successful claim construction order, and the case settled shortly before trial on highly favorable terms to Lutron.
Speaking Engagements

Speaker, “What Phillips Wrought: Trends in Claim Construction Law and Procedure,“ Advanced Patent Litigation Seminar, State Bar of Texas, March 23, 2012


“PTAB Update: New Motion to Amend Procedures Proposed,” Latham & Watkins Client Alert, October 30, 2018

En Banc Federal Circuit Overturns PTAB’s IPR Time-Bar Ruling,” Latham & Watkins Client Alert, August 23, 2018

“Patent Owner Statements During IPR May Limit Claim Scope,” Latham & Watkins Client Alert, June 6, 2017

“PTO Issues New Final Rules for PTAB Proceedings,” Latham & Watkins Client Alert, March 31, 2016

“The PTAB’s Proposed Rule Changes,” Latham & Watkins Client Alert, August 26, 2015

“Knowledge Is Power: Requiring 'Knowledge Of The Patent,'” Law 360, September 22, 2011

  • Bar Qualification
    • California
    • New York
    • Texas
    • US Patent and Trademark Office
    • JD, Columbia University School of Law, 2007
      Harlan Fiske Stone Scholar, 2005-2006
    • MS in Information Sciences, University of Michigan, 2002
    • BE in Computer Science, PSG College of Technology, 2000
    • English
  • Practices
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