ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,604, issued on Dec. 23, was assigned to Susonity Commercial GmbH (Gernsheim, Germany).
"Deep bluish-black effect pigments" was invented by Fumiko Sasaki (Iwaki, Japan), Kirsten Fritsche (Darmstadt, Germany), Masayuki Momose (Moka, Japan) and Michael Jungnitz (Dreieich, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is related to effect pigments exhibiting a deep black body color as well as a blue interference color, to a process for the production of such pigments as well as to the use thereof, especially in coating compositions."
The patent was filed on March 12, 2020, under Application No. 17/439,187.
*For further i...