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)

Aaron Grunberger Counsel
New York, NY 1.212.908.6383


Aaron Grunberger focuses his practice on patent prosecution with a focus on business method patents and is registered to practice before the U.S. Patent and Trademark Office. His experience spans many different industries, including financial systems, computer interface, reconfigurable processors, computer wagering, and advertisement servers. Mr. Grunberger is coauthor of articles of interest to his practice, including most recently: “IP Topics - Post-Issuance Experimentation as Evidence,” July 2005, and “IP Topics - Post-Issuance Experimentation as Evidence of Unexpected Results,” June 2004.

While earning his undergraduate degree, Mr. Grunberger performed work related to database programming and served as president of the Touro Chapter of the ACM. At Fordham University, Mr. Grunberger completed courses with an intense concentration in intellectual property law.



  • Fordham University School of Law, J.D., 2003, Fordham Law ReviewDean's List
  • Touro College, Computer Science, B.S., summa cum laude, 2000, National Dean's List

Bar and Court Admissions

  • New York
  • U.S. Patent and Trademark Office