 Aurora, IL, July 09, 2021 GLOBE NEWSWIRE -- CMC Materials, Inc. Nasdaq: CCMP CMC, a leading global supplier of consumable materials primarily to semiconductor manufacturers, today announced a ruling in litigation related to the companys intellectual property. The litigation against DuPont de Nemours, Inc. and several DuPont subsidiaries collectively, DuPont involves DuPonts importation, sale, and marketing in the United States of certain chemical mechanical planarization CMP slurries and components thereof, including acidic slurries for polishing dielectrics, which have now been found to infringe a patent owned by CMC that is fundamental to advanced dielectric CMP slurries. 