Highlight Image
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)

Jason C. Valentine, Ph.D. Patent Agent
Washington, DC


Jason C. Valentine, Ph.D., is a patent agent with 5 years of pharmaceutical research and development experience. Dr. Valentine’s expertise includes synthetic organic chemistry, polymorphism, bioprocesses, drug discovery, analytical chemistry and formulation science. In his practice, Dr. Valentine provides technical advice to support prosecution, litigation and opinion matters with an emphasis on the life science industries.

Prior to joining Kenyon, Dr. Valentine was a Senior Research Scientist at a pharmaceutical development company where he oversaw the process research and development of a human hepatitis C compound in clinical development.



  • Emory University, Chemistry, Ph.D., 2005
  • Harvard University, Postdoctoral Research Fellow, 2005-2006
  • Western Maryland College, Chemistry, B.A., 2000

Bar and Court Admissions

  • U.S. Patent and Trademark Office