In view of the Federal Circuit Decision in Aqua Products, the PTAB has de-designated as precedential MasterImage 3D, Inc. v. RealD Inc., Case IPR2015-00040 (PTAB July 15, 2015) (Paper 42) and has de-designated as informative Idle Free Sys., Inc. v. Bergstrom, Inc., Case IPR2012-00027 (June 11, 2013) (Paper 26).  As a replacement, Western Digital Corp. v. SPEX Techs., Inc., IPR2018-00082, -00084 (PTAB Apr. 25, 2018) (Paper 13) has been designated as informative, which provides guidance on motions to amend.  More information can be found in the USPTO press release.