ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,243, issued on Sept. 15, was assigned to NINGBO KUNPENG BIOTECH Co. LTD. (Ningbo, China).

"Polypeptide derivative and preparation method thereof" was invented by Zhenshan Zhang (Ningbo, China), Song Wu (Ningbo, China), Huiling Liu (Ningbo, China) and Wei Chen (Ningbo, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a polypeptide derivative, its preparation method, and pharmaceutical uses thereof. The derivative comprises a polypeptide (insulin, glucagon-like peptide-1, or PTH) and a fatty acid acyl modifying group L, which is linked to the polypeptide's lysine residue via a click reaction to yield a series of de...