Phillip W. CitroenPhillip W.Citroen

Partner, Intellectual Property

phillipcitroen@paulhastings.com

Washington, D.C.+1 202 551 1991

Phillip Citroën is an intellectual property partner in the Litigation department in the firm’s Washington, D.C. office.

Mr. Citroën is a registered patent attorney practicing all aspects of patent-related work, including litigation before U.S. district courts and the U.S. International Trade Commission (ITC), post-grant proceedings before the Patent Trial and Appeal Board (PTAB) of the U.S. Patent and Trademark Office (USPTO), and appeals before the Federal Circuit. Mr. Citroën has represented petitioners and patent owners in over 100 post-grant proceedings, including inter partes review (IPR) and post-grant review (PGR) proceedings. In many instances, Mr. Citroën’s involvement in these proceedings has been coupled with parallel district court or ITC litigation.

Representation of various companies, including Google, Samsung, Uber, eBay, PayPal, Helsinn, Walgreen, Mitek, JSR, Everspin, and VoltServer in IPR, PGR, and CBM proceedings before the PTAB and appeals from these proceedings to the Federal Circuit.
Elm 3DS Innovations, LLC v. Samsung Electronics Co., Ltd. (D. Del.). Representation of Samsung in a patent infringement case, IPRs and Federal Circuit appeals involving 3D semiconductor technology.
EIS, Inc. v. WOW Tech International GmbH (D. Del.). Representing EIS in an unfair competition and patent infringement case involving personal health products.
Certain Pneumatic Compression Devices and Components Thereof, 337-TA-1316 (ITC) & Innovamed Health LLC v. ManaMed Inc. (E.D. Tex.). Representation of Innovamed in patent infringement cases involving portable compression devices.
Scanton Technologies, LLC v. Everspin Technologies, Inc. (W.D. Tex.). Representation of Everspin in patent infringement case involving memory products.
Advanced Marketing Systems, LLC v. Walgreen Co. (E.D. Tex.). Representation of Walgreen in a patent infringement case, CBMs, and Federal Circuit appeals involving electronic couponing technology.
Rothschild Mobile Imaging Innovations, LLC v. Mitek Systems, Inc. (D. Del.). Representation of Mitek in a patent infringement case and IPRs involving software.
Certain Digital Media Devices, Including Televisions, Blu-Ray Disc Players, Home Theater Systems, Tablets and Mobile Phones, Components Thereof and Associated Software, 337-TA-882 (ITC). Represented LG in a patent infringement case involving digital media technology and location-based services technology.
Audiovisual Components and Products Containing the Same, 337-TA-837 (ITC). Represented Realtek in a patent infringement case involving wireless technology.
Bear Creek Technologies, Inc. v. Verizon Services Corp. (E.D. Va.). Represented Verizon in a patent infringement case involving Voice over Internet Protocol (VoIP) technology.
Certain Semiconductor Chips and Products Containing the Same, 337-TA-753 (ITC). Represented Rambus in a patent infringement case involving semiconductor devices.

Intellectual Property: Patents: Prosecution
The Legal 500 US
Rising Star (D.C. Region’s Top 40 Age 40 and Under)
The National Law Journal
Intellectual Asset Management
IAM Patent 1000
Rising Star
Managing IP
Legal Lion
Law360

"PTAB Says Amendments Still Rare, But Data Is Incomplete," Law360, Quoted
JULY 16, 2020
"4 Recent PTAB Decisions Attys Need To Know," Law360, Quoted
OCTOBER 22, 2018
"USPTO Proposes Changing Claim Construction Standard for IPRs, PGRs, and CBMs," Lexology, Co-author
MAY 10, 2018
"PTAB Gives Hope for Patent Amendments Amid Reform Talk," Law360, Quoted
APRIL 2, 2018
"After Lesson in Procedure, Federal Circuit May Mop Up AIA Issues," Law360, Quoted
FEBRUARY 12, 2018
"Aqua Products: Watershed Decision or Barely a Ripple," Law360, Co-author
OCTOBER 16, 2017

Membership Committee
PTAB Bar Association: Vice-Chair (2018-Present)
American Bar Association: Editorial Board
Landslide® magazine (2018-Present)
American Intellectual Property Law Association

"4th Annual Berkeley-Tsinghua Conference on Transnational IP Litigation", Berkeley School of Law, Speaker
JUNE 13, 2022
"The Rise of PTAB Discretionary Denials," IPWatchdog, Speaker
MAY 21, 2020

Intellectual Property

Intellectual Property