US Patent Issued to LONZA GUANGZHOU PHARMACEUTICAL on May 20 for "Method for preparation of Carsalam" (Chinese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,892, issued on May 20, was assigned to LONZA GUANGZHOU PHARMACEUTICAL LTD. (Guangzhou, China).

"Method for preparation of Carsalam" was invented by Xingbang Lin (Zhongshan, China) and Ji Zhou (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention discloses a method for preparation of Carsalam by a reaction of salicylamide with diethyl carbonate in the presence of an alkali ethoxide."

The patent was filed on May 18, 2020, under Application No. 17/603,107.

*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%2Fsea...