Invista North America S.Á.R.L. v. M & G USA Corp.

MEMORANDUM OPINION

ROBINSON, District Judge

I. INTRODUCTION

Plaintiffs INVISTA North America S.a.r.l. (“Invista”) and Auriga Polymers Inc.1 (“Auriga”) (collectively, “plaintiffs”) sued M & G USA Corporation and M & G Polymers USA, LLC (collectively, “defendants”) for infringement of U.S. Patent Nos. 7,919,159 (“the 159 patent), 7,943,216 (“the ’216 patent”), and 7,879,930 (“the ’930 patent”) (collectively, “the patents-in-suit”). (D.I. 1; D.I. 7) Defendants asserted counterclaims seeking declaratory judgment of non-infringement and invalidity of the patents-in-suit. (D.I.42)

In a memorandum…