ClearValue, Inc. v. Pearl River Polymers, Inc., No. 11-1078 (Fed. Cir. 2012)Annotate this Case
The 690 patent is directed to a process for clarifying low alkalinity water using a blend of a high molecular weight quaternized polymer and an aluminum polymer. Claim 1 refers to a process for clarification of water of "raw alkalinity less than or equal to 50 ppm by chemical treatment." A jury found that the 690 patent was valid and indirectly infringed. The Federal Circuit reversed in part, holding that the verdict that the 690 patent was not invalid under 35 U.S.C. 102 was not supported by substantial evidence.The court affirmed that defendant did not misappropriate the trade secret described in claim 1.