ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,575, issued on Dec. 16, was assigned to Colgate-Palmolive Co. (New York).
"Fabric softening compositions" was invented by Sandra Paola Sanchez (Mexico D.F., Mexico), Raul Arellano Maldonado (Mexico D.F., Mexico) and Marcela Hernandez (San Jose Iturbide, Mexico).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein are fabric softening compositions comprising a quaternary ammonium compound (e.g., an esterquat); a cationic polyquaternium polymer (e g., polyquaternium-7); a preservative system which comprises an organic acid (e.g., lactic acid or phosphonic acid); and 3-iodo-2-propynyl butylcarbamate (IPBC) or Dodecylguanidine Hydrochloride (D...