On January 28, 2021, the U.S. District Court for the Northern District of California (NDCA) issued an order granting summary judgment of noninfringement under the doctrine of equivalents.  Fluidigm Corp. v. IONpath, Inc., Case No. 3:19-cv-05639-WHA, Dkt. No. 210 (N.D. Cal. Jan. 28, 2021).  The NDCA found that the patentee “abdicated” its burden under the doctrine of equivalents by refusing to engage in the hypothetical claim analysis required under defendant’s ensnarement defense.