IN THE UNITED STATES DISTRICT COURT  FOR THE DISTRICT OF DELAWARE  FIRST QUALITY TISSUE, LLC,        Plaintiff,   v.  IRVING CONSUMER PRODUCTS LIMITED and IRVING CONSUMER PRODUCTS, INC.,  Defendants.  ) ) ) ) ) ) ) ) ) ) )      C.A. No. 19-428-RGA        MEMORANDUM OPINION AND SPECIAL MASTER ORDER #8  First Quality moved (1) for a protective order to prevent the deposition of third party  Kimberly-Clark and (2) to strike Irving’s third and fourth supplemental invalidity contentions.  D.I. 147. Each side submitted a three-page letter brief on these two disputes. SeeD.I. 146. On  October 21, 2020, the Special Master held a transcribed hearing. At the hearing, the Special  Master denied First Quality’s motion for a protective order, allowing the deposition of Kimberly-  Clark to proceed.SeeOctober 21, 2020 Hearing Transcript at 21-24.  For the reasons explained below, the Special Master denies First Quality’s motion to  strike Irving’s third and fourth supplemental invalidity contentions.  BACKGROUND    On February 24, 2020, Irving served initial invalidity contentions that identified four  prior art references and alleged anticipation under 35 U.S.C. § 102(b). On August 28, 2020,  Irving served supplemental invalidity contentions identifying additional prior art it had located  and tested. In addition to anticipation, Irving added obviousness contentions and detail to its  § 112 and unenforceability positions. On September 3, 2020, Irving again supplemented its  invalidity contentions to disclose measurements taken on prior art tissue samples.  Case 1:19-cv-00428-RGA Document 149 Filed 10/27/20 Page 1 of 7 PageID #: 2498