US Patent Issued to Galderma Holding on July 22 for "Method for deacetylation of biopolymers" (Swedish, French Inventors)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,768, issued on July 22, was assigned to Galderma Holding SA (Zug, Switzerland).

"Method for deacetylation of biopolymers" was invented by Johan Olsson (Bromma, Sweden) and Craig Steven Harris (Biot, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for at least partial deacetylation of a biopolymer comprising acetyl groups, including: a1) providing a biopolymer including acetyl groups; a2) reacting the biopolymer including acetyl groups with hydroxylamine (NH2OH) or a salt thereof at a temperature of 100deg C. or less for 2-200 hours to form an at least partially deacetylated biopolymer; and a3) recovering the at least partially deacety...