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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)

Stephen F. Guzzi Associate
New York, NY 1.212.908.6408


Stephen Guzzi’s practice focuses on patent prosecution. He has prosecuted numerous patent applications at all stages of the application process. Mr. Guzzi also provides technology analysis in the context invalidity, non-infringement and freedom-to-operate opinions, patent portfolio review, product review, negotiations, claim construction, and case strategy. 

Mr. Guzzi’s technological knowledge relates to the fields of analog and digital integrated circuit design.  As a practicing engineer, prior to entering the legal field, he developed integrated circuits and electronic systems for leading technology companies. At Maxim Integrated Products, Mr. Guzzi designed several families of low-power operational amplifiers at the 1 and 10 MHz bandwidth nodes in a hybrid bipolar-CMOS process. At Standard Motor Products, he developed aftermarket automotive ignition modules.



  • Georgetown University, J.D., magna cum laude, 2012, American Criminal Law Review
  • Columbia University, Electrical Engineering, M.S., 1998
  • Cornell University, Mechanical Engineering and Electrical Engineering, B.S., with distinction, 1995

Bar and Court Admissions

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