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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)

Maria Luisa Palmese Partner


Maria Luisa Palmese has over 20 years’ experience representing clients in patent litigation, patent prosecution, and trademark and design protection matters. She maintains a global practice focused on assisting companies with their U.S. IP matters. Her focus is to efficiently and effectively create and maximize value through IP.

A skilled litigator, Ms. Palmese has represented her clients in both jury and bench trials in some of the busiest patent jurisdictions in the United States, including the Southern District of New York, the District of New Jersey, Northern District of Illinois, and the District of Delaware. She is adept at litigating complex intellectual property disputes across a range of subject matter, including chemicals, and chemical processes, pharmaceuticals, vaccines, cosmetics, polymers and other materials.

Ms. Palmese also maintains a counseling, patent prosecution, opinion and due diligence practice. In this capacity she counsels small- and medium-sized businesses in a variety of industries, including the chemical, pharmaceutical, food, cosmetics, and agricultural industries, as well as the design, fashion and entertainment industries.

Ms. Palmese is bilingual in Italian, and fluent in French and Spanish. She also has an elementary knowledge of German and Russian.



  • Columbia Law School, J.D., 1990
  • Massachusetts Institute of Technology, Chemistry, S.B., 1987


  • French
  • Italian
  • Spanish