United States Court of Appeals for the Federal Circuit ______________________

ELEKTA LIMITED, Appellant

v.

ZAP SURGICAL SYSTEMS, INC., Appellee ______________________

2021-1985 ______________________

Appeal from the United States Patent and Trademark Office, Patent Trial and Appeal Board in No. IPR2019- 01659. ______________________

Decided: September 21, 2023 ______________________

JENNIFER LIBRACH NALL, DLA Piper US LLP, Austin, TX, argued for appellant. Also represented by STANLEY JO- SEPH PANIKOWSKI, III, San Diego, CA; AARON PATRICK BOWLING, Arnold & Porter Kaye Scholer LLP, Chicago, IL.

APRIL ELIZABETH ISAACSON, Kilpatrick Townsend & Stockton LLP, San Francisco, CA, argued for appellee. Also represented by ANDREW JAMES ISBESTER; MATTHEW MEYER, Menlo Park, CA. ______________________

Before REYNA, STOLL, and STARK, Circuit Judges. Case: 21-1985 Document: 64 Page: 2 Filed: 09/21/2023