Transweb, LLC v. 3M Innovative Props. Co., No. 14-1646 (Fed. Cir. 2016)Annotate this Case
3M and TransWeb manufacture respirator filters, consisting of “nonwoven fibrous webs.” 3M sued Transweb for infringement of several patents. TransWeb sought a declaratory judgment of invalidity and non-infringement. A jury found the patents to be invalid based on TransWeb’s prior public use of the patented method. In accordance with an advisory verdict from the jury, the district court found the patents unenforceable due to inequitable conduct. An inventor for the patents and a 3M in-house attorney acted with specific intent to deceive the patent office as to the TransWeb materials. The district court awarded approximately $26 million to TransWeb, including trebled attorney fees as antitrust damages. The Federal Circuit affirmed, finding sufficient corroborating evidence to support the finding of prior public use by TransWeb, and that attorney fees are an appropriate basis for damages under the antitrust laws in this context. TransWeb’s attorney fees appropriately flow from the unlawful aspect of 3M’s antitrust violation and are an antitrust injury that can properly serve as the basis for antitrust damages.