INVISTA owns United States Patent Number 7,943,216. INVISTA's POLYSHIELD® resin when combined with MXD6 utilizes the technology of U.S. Patent No. 7,943,216. INVISTA initiated a patent lawsuit in the District Court of Delaware (C.A. No. 11-1007) to enforce U.S. Patent No. 7,943,216 against M&G and the Court entered Judgment (see links to Judgment and Order). Post-trial motions are currently pending.