Enrique W. Iturralde


New York

T: 646-797-4361

F: 212-257-5796


Intellectual Property

Intellectual Property Litigation

Enrique William Iturralde is an associate at Fabricant LLP. Enrique represents a vast array of clients in complex patent litigation, patent prosecution, and strategic IP portfolio management. A former primary patent examiner for the U.S. Patent and Trademark Office, Enrique's technical experience spans a broad range of cutting-edge technologies in the fields of consumer electronics, semiconductor devices, medical devices, telemedicine systems, vehicular systems, electronic displays, power tools, map-based software, fintech applications, communications networks, cloud computing, graphical and touchless interfaces, and athletic footwear.


Enrique has represented petitioners and patent owners in over 90 inter partes review (IPR) and covered business method (CBM) proceedings before the Patent and Trial Appeal Board (PTAB). Enrique also litigates high-stakes patent disputes in various district courts, the International Trade Commission, and the Federal Circuit. In addition to litigation, Enrique uses his patent examination know-how to pursue and enforce patent rights for independent inventors, small businesses, and multinational corporations. 


Prior to joining Fabricant LLP, Enrique was an associate at Brown Rudnick LLP and Shearman & Sterling LLP. During law school, Enrique served as a judicial extern to the Honorable Michael J. Davis, Chief Judge of the United States District Court for the District of Minnesota.

Representation PTAB Matters

  • IPR2016-01448, -01449, Volkswagen Group of America v. Blitzsafe Texas (obtained denials of institution) (USB and Bluetooth interlace)

  • IPR2016-01137, -01138, -01146, -01147, Microsoft v. Windy City lnnovations (obtained denials of institution) (network communications and multiplexing)

  • IPR2017-00824, -00825, Kingston v. SPEX Technologies (obtained denial of institution) (secure storage devices)

  • IPR2018-00817, -00818, -00821, Apple v. AGIS Software Development (obtained denials of institution)

  • IPR2018-01081, -01082, -01083, -01084, -01085, -01086, -01087, -01088, Google v. AGIS Software Development (obtained denials of institution)

Representation Litigation Matters

  • Represented declaratory-judgment plaintiff in a patent infringement suit involving electronic displays (S.D.N.Y.).

  • Represented global automotive supplier in defense of patent infringement actions involving windshield wiper technology (D. Del., PTAB).

  • Represented global power tool manufacturer in defense of patent infringement actions involving table saws (D. Or., ITC).

  • Represent software developer in patent infringement actions involving remote location tracking and location sharing technologies (E.D. Tex., PTAB ).

  • Represent asset manager in patent infringement actions involving computer processor power management and a wallet mobile payment technologies (E.D. Tex., PTAB).

  • Represent research lab in patent infringement action involving speech recognition technologies (E.D. Tex., PTAB).

  • Represented global apparel brand in defense of patent infringement claims involving sneakers and soccer cleats (D. Mass.).


Representation Circuit Courts

  • In re Apple, Case No. 18-151 (Fed. Cir. 2018) (obtained denial of petition for mandamus)


  • ​Windy City Innovations v. Facebook, Case No. 18-1400 (Fed. Cir. 2020) (obtained ruling that 35 U.S.C. § 315(c) does not authorize same-party joinder or adding new issues and that PTAB Presidential Opinion Panel decisions receive no deference)


  • Co-Author. "Aligning Existing intellectual Assets with Business Objectives: Cybaris. An intellectual Property Law Journal 5, no. 1 (2014)· 4.)

Speaking Engagements

  • Speaker, "Through the Looking Glass: A Patent Examiner's View of Prosecution at the USPTO: Alumni CLE Series," Willam Mitchell College of Law. February 2015

  • Speaker, "Examining the Examiners." 3M Legal Practice Committee at 3M Corporate Headquarters, December 2014 


  • New York Intellectual Property Law Association 

  • Hispanic National Bar Association (2013 IP Law Institute Scholar)

  • PTAB Bar Association  

William Mitchell College of Law - J.D. 2015

(magna cum laude)

Bar Admissions

  • New York




Fairfield University, Electrical and Computer Engineering - M.S. 2007

Fairfield University, Computer Engineering - B.S. 2005