International trade · 14/06/2016Updated: 10/17/2026 · 1 min read

Ajinomoto Co., Inc. and Ajinomoto Heartland Inc. File Complaint with U.S. International Trade Commission Over L-Tryptophan Patent Infringement

Ajinomoto Co., Inc. of Japan and Ajinomoto Heartland Inc. of Chicago, Illinois, have filed a complaint with the U.S. International Trade Commission on May 10, 2016, alleging that certain L-tryptophan products and their methods of production infringe on U.S. Patents No. 7,666,655 and No. 6,180,373, prompting the companies to request an investigation and potential exclusion orders.