ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,003, issued on Feb. 17, was assigned to Afton Chemical Corp..
"Quaternary ammonium compounds" was invented by William Jay Colucci (Glen Allen, Va.), Paul Kondracki (Richmond, Va.), John Loper (Henrico, Va.) and Andre Williams (Midlothian, Va.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to novel quaternary salt compounds including, in one embodiment, a cation having a quaternary ammonium group that is coupled to a N-substituted amino ketoacetate anion as a counterion."
The patent was filed on Feb. 3, 2025, under Application No. 19/044,245.
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