Southco: No Error In Use Of Lexicography, Disavowal Standard In Patent Dispute

(November 12, 2015, 7:56 AM EST) -- WASHINGTON, D.C. — An appellate court did not err in limiting the role of the intrinsic evidence in construing claims for two captive screw patents under the “lexicography and disavowal” standard, Southco Inc. says in an Oct. 28 response to a petition filed with the U.S. Supreme Court (Fivetech Technology Inc. v. Southco Inc., No. 15-381, U.S. Sup.).

(Respondent’s opposition available. Document #78-151116-002B.)

In a 2010 complaint, Southco sued Fivetech Technology Inc. for infringement of U.S. patent Nos. 5,851,095, 6,280,131 and 6,468,012, which claim particular types...
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