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Enrique W. Iturralde


New York

T: 646-797-4361

F: 212-257-5796

Intellectual Property

Intellectual Property Litigation

Enrique William Iturralde is a Partner 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 touch-less interfaces, and athletic footwear.


Enrique has represented petitioners and patent owners in over 140 inter partes review (IPR), post-grant review (PGR), 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)

Representation Ex Parte Reexamination Matters

  • Represented Patent Owner in 90/014,509; 90/014,510; 90/014,629; and 90/014,630 obtaining confirmations of validity of all challenged claims and findings of earlier application priority and prior invention to antedate prior art


  • 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 

  • Panelist, USPTO Office of Equal Employment Opportunity and Diversity, Patent Law Diversity Program, January 25, 2021.


  • 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

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