Flexsys files $20 million patent infringement suit.Flexsys Americas L.P. has commenced a patent infringement patent infringement n. the manufacture and/or use of an invention or improvement for which someone else owns a patent issued by the government, without obtaining permission of the owner of the patent by contract, license or waiver. action in the United States District Court United States District Court In the U.S., any of the 94 trial courts of general jurisdiction in the federal judicial system. Each state, as well as the District of Columbia and the Commonwealth of Puerto Rico, has at least one federal district court. for the Northem District of Ohio The District of Ohio was a federal judicial district of the United States created by the Federal Judiciary Act of 1801 which consisted of the Northwest and Indiana Territories. against Kumho Tire USA, Kumho Tire (Korea), Sovereign Chemical, Korea Kumho Petrochemical Ltd. (Korea) and Sinorgchem (China). The complaint alleges that the defendants have infringed U.S. Patent Numbers 5,117,063; 5,453,541; 5,608,111; and 6,140,538. The Flexsys patents identified in the lawsuit cover its invention of a process, discovered after a series of experiments to probe the mechanism of nucleophilic aromatic substitution A nucleophilic aromatic substitution is a substitution reaction in organic chemistry in which the nucleophile displaces a good leaving group, such as a halide on an aromatic ring. of hydrogen reactions, for producing 4-aminodiphenylamine and its alkylated derivatives. These products function as antidegradants in most tires. |
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