Back in 2019, the parties in C.R. Bard, Inc. v. AngioDynamics, Inc., C.A. 15-218-JFB-SRF (D. Del.) went to trial on infringement claims for a patent involving a "means of identification" of certain medical devices.
During trial, at the close of plaintiffs' case, visiting Judge Bataillon granted an oral FRCP 50(a) motion for JMOL for the defendant (wow!), finding that the patent was ineligible as directed to an abstract idea involving labeling and printed matter.
The Federal Circuit later reversed, holding that the claims were patent eligible. Defendant then sought rehearing en banc, arguing that the panel's determination that the claims were patent eligible would cut off its ability to present other ineligibility arguments …