Flexsys continues with patent battle against Sinorgchem

ERJ staff report (DS)

St Louis, Missouri -- Flexsys parent, Solutia Inc. has said it is seeking a re-hearing of a case in which a court ruled against it. The case involves Flexsys' ongoing patent infringement dispute with Sinorgchem regarding process technology for the manufacture of 4-ADPA and its PPD derivatives.

Last week, a three-judge panel of the US-based Court of Appeals for the Federal Circuit (CAFC) ruled 2-1 that Sinorgchem had not literally infringed Flexsys' patents, and remanded the case to the ITC to determine whether Sinorgchem had infringed under the doctrine of equivalents.

"We will be moving quickly to file a petition for rehearing," said Tim Wessel, vice president, Antidegradants and Crystex. "Importantly, the ITC exclusion order that prohibits Sinorgchem's importation of 4-ADPA and 6PPD into the United States remains in full effect. We agree with the strongly worded dissent that the ITC decision should be upheld." In July 2006, the International Trade Commission (ITC) ruled in favor of Flexsys

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Press release from Solutia