ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,941, issued on Feb. 17, was assigned to OMYA INTERNATIONAL AG (Oftringen, Switzerland).

"Calcium carbonate treated with functionalized poly- and/or perfluorinated compounds" was invented by Franck Baradel (Zofingen, Switzerland) and Matthias Welker (Hesingue, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a functionalized poly- and/or perfluorinated compound treated calcium carbonate, wherein the calcium carbonate is surface treated with at least one functionalized poly- and/or perfluorinated compound, a process for preparing the poly- and/or perfluorinated compound treated calcium carbonate, the use of the po...