Low Temp Industries, Inc. v. Duke Manufacturing Co., No. 21-2137 (Fed. Cir. Dec. 28, 2021)

From the Opinion

The passage below is extracted verbatim from the opening of the document. It has not been editorially summarized — consult the full opinion for the court's complete reasoning.

Duke Manufacturing Co. (Duke) appeals the entry of a preliminary injunction related to its products accused of patent infringement by Low Temp Industries, Inc. (LTI). The district court found that LTI is likely to show that Duke’s accused products infringe several claims of U.S. Pa- tent Nos. 8,307,761 (’761 patent) and 8,661,970 ( ’970 pa- tent), and that Duke had failed to raise a substantial question of validity as to those claims based on the Fi- negan1 reference.