ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,466,971, issued on Nov. 11, was assigned to Nature Coatings Inc. (Los Angeles).
"Plant char colorants" was invented by Stephanie Jane Palmer (Los Angeles).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein are methods, and compositions for use in the coloration of materials. The compositions described herein are black pigments derived primarily from recently-living plants or animals and are therefore renewable."
The patent was filed on Sept. 25, 2020, under Application No. 17/640,869.
*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetah...