Northwestern University School of Law, J.D.
  • magna cum laude, Order of the Coif
  • Northwestern Journal of Technology & Intellectual Property, Articles Editor
University of Notre Dame, B.S.
  • Mechanical Engineering
  • cum laude

Prior Employment

  • Kirkland & Ellis, Partner, 2013-2018, Associate, 2008-2013
  • United States Patent and Trade Office, Patent Examiner, 2001-2003

Bar Admissions

Court Admissions


  • Honorable Timothy B. Dyk, Court of Appeals for the Federal Circuit, 2007-2008
News & Resources


Dennis Abdelnour is an Intellectual Property attorney who litigates complex patent and other intellectual property cases for a wide range of products and technologies, including automotive parts, consumer products, semiconductors, smartphones, medical devices, and pharmaceuticals. He has substantial trial experience in Federal District Courts and in the International Trade Commission.  Dennis is frequently involved in appeals to the Court of Appeals for the Federal Circuit, and in IPR proceedings before the U.S. Patent and Trademark Office.


Patent Litigation (District Court)

  • Janssen Biotech, Inc. v. Celltrion Healthcare Co., Nos. 1-15-cv-10698-MLW, 17-cv-11008-MLW (D. Mass.)

  • Modine Manufacturing Co. v. BorgWarner, Inc., No. 1-17-cv-00467 (D. Del.)

  • Dyson Inc. v. SharkNinja, No. 1:14-cv-00779 (N.D. Ill.)
  • AAMP of Florida, Inc. v. Automotive Data Solutions, Inc., No.8:13-CV-2019-T-35TGW (M.D. Fla.)
  • W.L. Gore v. C.R. Bard, No. 11-515-LPS-CJB (D. Del.)
  • General Mills Marketing, Inc. v. Fritsch GmbH, No.11-CV-02099-PJS-JJG (D. Minn.)
  • Audionics Sys. Inc. v. AAMP of Florida, Inc., No.2:12-CV-10763-MMM-JEM (C.D. Cal.); AAMP of Florida, Inc. v. Audionics Sys. Inc., No. 8:12-CV-02922-VMC-TGW (M.D. Fla.)
  • AAMP of Florida, Inc. v. Metra Elec. Corp., No.8:11-CV-2439-T-23-TGW (M.D. Fla.)
  • Infineon Tech. AG v. Atmel Corp., No. 11-307-RGA (D. Del.)
  • Marlowe Patent Holdings LLC v. Dice Electronics LLC et al., No.2:10-CV-01199-PGS-ES (D.N.J.)
  • Braun Melsungen AG v. Terumo Medical Corp., No.1:09-CV-00347-JJF-LPS (D. Del.)
  • Glaxo Group Ltd. v. Teva Pharms. USA, Inc., No. 07-CV-713 (D. Del.)

Patent Litigation (ITC)

  • Certain Protective Cases For Electronic Devices and Components Thereof, ITC Inv. No. 337-TA-955. Represented Complainant Otter Products LLC in action involving smartphone protective case technology.
  • Certain Automated Library Devices, ITC Inv. No. 337-TA-746.Represented Respondent IBM in action involving data storage systems.
  • Certain Portable Data and Mobile Communications Devices and Related Software, ITC Inv. No. 337-TA-710 (Enforcement Proceeding). Represented Complainant, a leading computer, mobile device and media player company, in ITC enforcement proceeding involving smartphones.
  • Certain Flash Memory Chips and Products Containing The Same, ITC Inv. No. 337-TA-664. Represented Respondent Samsung and its downstream customers in action involving semiconductor technology.

Bankruptcy Litigation

  • In re Qimonda, (Bankr. E.D. Va.) Successfully represented Objectors IBM, Infineon, and Samsung in achieving denial of Foreign Administrator’s motion to remove 365(n) protection from Chapter 15proceeding.

Intellectual Property Appeals

  • NuVasive, Inc. v. Medtronic Inc., Nos. 2015-1838, -1839, -1840,-1841, -1842, -1843 (Fed. Cir. 2016). Related patent appeals from PTAB involving methods and instruments for performing spinal surgery.
  • Hemopet v. Hill’s Pet Nutrition, Inc., No. 2015-1218 (Fed. Cir. 2015).Appeal of summary judgment finding of invalidity due to unpatentable subject matter (nutrigenomic pet food).
  • Bard Peripheral Vascular v. W.L. Gore, No. 2014-1114, 776 F.3d837 (Fed. Cir. 2015). Patent appeal involving stent graft technology.
  • Modine Manufacturing Co. v. BorgWarner, Inc., No. 2014-1059 (Fed.Cir. 2014). Patent appeal involving heat exchangers used in large diesel engines.
  • Thomson Licensing SAS v. International Trade Commission, No.2012-1536 (Fed. Cir. 2013). Patent appeal involving liquid crystal display technology.
  • Robert Bosch LLC v. Pylon Mfg. Corp., Nos. 2011-1363, -1364, 719F.3d 1305 (Fed. Cir. 2013). En banc hearing to resolve question of appellate jurisdiction.
  • Michael Jaffe v. Samsung Electronics Co., No. 12-1802, 737 F.3d14 (4th Cir. 2013). Bankruptcy appeal involving the applicability of a patent licensee’s 365(n) right to elect to retain rights under a patent license.
  • A leading computer, mobile device and media player company v. International Trade Commission, No. 2012-1125 (Fed. Cir. 2012); HTC Corp. v. International Trade Commission, No. 2012-1126 (Fed.Cir. 2012) (dismissed prior to oral argument). Related patent appeals involving smartphone technology.
  • Northpoint Tech., Ltd. v. DIRECTV, Inc., No. 2011-1524 (Fed. Cir.2012) (affirmed without opinion). Patent appeal involving signal-processing technology.
  • Bard Peripheral Vascular v. W.L. Gore, No. 2010-1510, 670 F.3d1171, 682 F.3d 1003 (Fed. Cir. 2012) (affirmed jury verdict of liability).Patent appeal involving stent graft technology.
  • Braun Melsungen AG v. Terumo Medical Corp., Nos. 2011-1400,-1428 (Fed. Cir. 2011) (dismissed prior to oral argument). Patent appeal involving medical safety IV catheter device.

False Advertising Litigation

  • Sethavanish v. ZonePerfect Nutrition Co., No. 3:12-CV-02907-SC(N.D. Cal.)

National Advertising Division (NAD) and National Advertising Review Board (NARB)

  • Successfully represented Verizon in various advertising disputes relating to its FiOS advanced fiber-optic network and related Internet, television and phone services.
  • Successfully defended Abbott Laboratories in challenge involving Ensure nutritional shake food products.

News & Resources

Seminars & Events


  • Illinois Super Lawyers, Recognized as a Rising Star, 2014-2015, 2017-2019