Northwestern Pritzker 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


Court Admissions

News & Resources


Dennis Abdelnour litigates complex patent and other intellectual property cases for a range of products and technologies, including automotive parts, consumer products, medical devices, semiconductors, smartphones, and pharmaceuticals.

Dennis has substantial trial experience in Federal District Courts, in the International Trade Commission, and in private arbitration. He has argued discovery, claim construction, and summary judgment motions, among others. He recently first-chaired a preliminary injunction hearing in the Northern District of Illinois, winning a rare mandatory injunction for his pro bono client. 

Dennis also serves as lead counsel in IPR proceedings before the U.S. Patent and Trademark Office, and has argued before the Board on multiple occasions. 

Dennis also frequently handles complex appeals in intellectual property matters. He has argued cases in the Courts of Appeals for the Federal Circuit and the Seventh Circuit, including a patent appeal deemed one of the “Biggest Patent Rulings of 2019” by Law360. 


Representative Matters

Patent Litigation (District Court)

  • Enco Systems, Inc. v. DaVincia, LLC, No. 1-19-cv-00039 (E.D. Missouri)
  • 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 Office IPRs

  • American Axle & Manufacturing, Inc., v. Neapco Drivelines LLC, IPR-2018-01761
  • Curt Manufacturing, LLC v. Horizon Global Americas Inc., IPR-2019-00625

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

  • American Axle & Manufacturing, Inc. v. Neapco Holdings LLC, No. 18-1763 (Fed. Cir.)
  • 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.

Prior Experience

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


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



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