ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,319, issued on Jan. 13, was assigned to Dentsply Sirona Inc. (York, Pa.).
"Dental composition" was invented by Jacques Lalevee (Mulhouse, France), Mira Abdallah (Constance, Germany), Thomas Tigges (Constance, Germany), Kira Neuhaus (Constance, Germany), Caroline Renn (Singen, Germany) and Liu Huaibing (Charlotte, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is related to a dental composition comprising at least one polymerizable monomer having at least one ethylenically unsaturated group; and a radical initiator system comprising a photosensitizer having an absorption maximum ranging from 400 nm to 800 nm; and at least o...