Fleming v. Escort Inc., No. 14-1331 (Fed. Cir. Dec. 24, 2014)

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.

The district court in this case refused to disturb a jury verdict concerning two reissue patents. The jury found for the patentee on infringement and validity as to most of the asserted claims, but it invalidated five claims. The patentee, Hoyt Fleming, appeals the five invalidity de- terminations, arguing that (1) the testimony offered to establish invalidity was insufficiently specific to support the verdict; (2) there was insufficient corroboration of the prior invention relied on for the invalidity determinatio…