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Kenyon Successfully Represents Toyota in Years-Long Patent Litigation

Kenyon & Kenyon LLP successfully represented Toyota Motor Corp. in a long term patent litigation against American Vehicular Sciences (AVS). Originally brought by AVS in the Eastern District of Texas, the matter asserted 24 patents across seven separate cases – accusing essentially every major Toyota vehicular safety system. In the three years since the original filing, the Kenyon team filed 12 separate petitions for inter partes review (IPR) and won a stay in the E.D. Tex. pending resolution of the IPRs. The Patent Trial and Appeal Board granted each of the IPRs, and significant claims were cancelled or dropped. Additionally, the Kenyon team successfully petitioned the Federal Circuit for a writ of mandamus and the case was transferred from the E.D. Tex. to the Eastern District of Michigan, and filed various invalidity summary judgment papers, causing the plaintiff to drop a number of other asserted patents. In May of 2015, the E.D. Mich. granted the plaintiff’s unopposed motions to dismiss with prejudice all of the remaining cases against Toyota. (2015)

Aaron C. Deditch Counsel
New York, NY 1.212.908.6417


Aaron Deditch has significant experience in prosecuting, litigating and licensing patents and providing counseling to clients with respect to a broad range of intellectual property matters.  He focuses his practice on patent infringement litigations and patent prosecution matters.  He has been actively involved in every stage of a number of complex, lengthy and major patent infringement litigations, which include preliminary patent assertion investigations, filing and serving complaints and answers, discovery and motion practice, and summary judgment motions and hearings. 

Mr. Deditch has drafted and prosecuted domestic and foreign patent applications for domestic and international clients. The patent applications encompass various electrical, electronic and computer technologies, including electronic control systems, programmable logic controllers, and computer hardware and software systems. He also provides patent counseling and opinions to both domestic and international clients, and has experience in reexamination and European patent opposition proceedings.

Prior to joining Kenyon, Mr. Deditch was an intellectual property counsel with Siemens and provided intellectual property counseling and services for a number of the client operating companies, which included the energy and automation companies and telecommunication companies of Siemens. In particular, Mr. Deditch was involved in providing intellectual property counseling and opinions, preparing and prosecuting patents, patent licensing and managing patent litigations, which included an appeal to the U.S. Court of Appeals for the Federal Circuit.



  • Rutgers University, J.D., with honors, 1989, Order of the Coif
  • Duke University, Business Administration, M.B.A., 1983, Fuqua Fellowship
  • Lehigh University, Electrical Engineering, B.S., 1980, Eta Kappa Nu, Tau Beta Pi

Bar and Court Admissions

  • District of Columbia
  • New Jersey
  • New York
  • U.S. District Court for the District of New Jersey
  • U.S. District Court for the Eastern District of New York
  • U.S. District Court for the Southern District of New York
  • U.S. Court of Appeals for the Federal Circuit
  • Registered Patent Attorney: U.S. Patent and Trademark Office

Professional Organizations

  • American Bar Association 
  • District of Columbia Bar Association