ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,664, issued on Dec. 23, was assigned to Oleon NV (Evergem, Belgium).

"Ester based functional fluid" was invented by Marion Kerbrat (Margny-les-Compiegne, France), Anne-Elise Lescoffit (Margny-les-Compiegne, France) and Pieter Struelens (Gooik, Belgium).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to the use of specific esters in a functional fluid for electric vehicles."

The patent was filed on Dec. 14, 2023, under Application No. 18/838,166.

*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-b...