US Patent Issued to CHRYSO on April 29 for "Method for using alkanolamine in a grinder" (South African, French Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,383, issued on April 29, was assigned to CHRYSO (Issy-les-Moulineaux, France).

"Method for using alkanolamine in a grinder" was invented by Bruno Pellerin (Avon, France) and Martinho Duarte Amaro Correia (Johannesburg).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a method for using a secondary or tertiary alkanolamine for grinding cement, the method including: forming an inorganic acid salt of the alkanolamine; and adding the salified alkanolamine to a grinder."

The patent was filed on Oct. 10, 2019, under Application No. 17/284,261.

*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/ne...