Gregory J. Gonsalves

Gregory J. Gonsalves, PhD

Counsel | Electrical & Computer Technologies
617.646.8436 LinkedIn Profile


  • BS, Electrical Engineering, Northeastern University
  • MS, Electrical Engineering, Syracuse University
  • PhD, Computer Engineering, Syracuse University
  • JD, Georgetown University Law Center, cum laude

Key Technologies

  • Cybersecurity 
  • Cryptography
  • Cloud Storage
  • Artificial Intelligence
  • Digital Health 
  • Robotics/Automation
  • Integrated Circuit Design
  • Telecommunications

Practice Groups

Admitted to Practice

  • US Supreme Court
  • US Patent and Trademark Office 
  • US Court Of Appeals For The Federal Circuit
  • US Court of Appeals For The Fourth Circuit
  • US District Court For The Eastern District Of Virginia
  • Virginia State Bar
  • District of Columbia Bar


  • Washington, DC


Gregory Gonsalves prepares and prosecutes patent applications and ex parte reexaminations in various fields of technology including cryptography, cybersecurity, integrated circuit design, semiconductor design, medical devices and systems, operations management, business management, computer software, etc. 

Gregory serves in high-stakes intellectual property matters at the Patent Trial and Appeal Board (PTAB), Court of Appeals of the Federal Circuit, federal district courts, and the US Supreme Court. 

Gregory has served as lead counsel in more than 270 post-grant proceedings (IPRs, CBMs, and PGRs) at the PTAB. In addition, he has served as lead counsel in over 30 appeals to the Court of Appeals of the Federal Circuit, and an appeal to the US Supreme Court.

His clients have generated over a billion dollars in licensing revenue from patents on which he has obtained or saved from cancellation at the PTAB.

Gregory also served as an Administrative Patent Judge (APJ) at the PTAB for three years. 

Before beginning his legal career, Gregory worked for over 15 years as an engineer at IBM and Lockheed Martin. He led teams of engineers and software developers in various projects including the automated design of integrated circuits, air traffic control, and satellite scheduling and control.


Gregory has taught English to immigrants as a volunteer and has represented numerous criminal defendants pro bono as a volunteer at the public defender’s office.


  • Ranked among the top 4% of best performing attorneys representing patent owners before the PTAB by Patexia
  • Ranked among the top 3% of most active attorneys representing appellants and appellees in CAFC cases by Patexia 
  • Received IBM Doctoral and Masters Fellowship tuition and salary grants to perform research for his doctorate and masters degrees


  • Gonsalves, G.J., Technology Mapping Using Simulated Annealing, IBM Technical Disclosure Bulletin, Aug. 1990, vol. 33, No. 3A, p. 308.
  • Gonsalves, G.J., Logic Synthesis Using Simulated Annealing, Proc. IEEE Int. Conference on Computer Design, Port Chester, October 1986, pp. 561-564.

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