ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,665, issued on Dec. 30, was assigned to CHENGDU ENZPRO BIOTECHNOLOGY Co. LTD (Sichuan, China).

"Thioredoxin mutant, preparation method thereof, and application thereof in production of recombinant fusion protein" was invented by Yi Liu (Sichuan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a thioredoxin mutant, preparation method thereof, and application thereof in production of recombinant fusion protein. The thioredoxin mutant is prepared by modifying at least one amino acid in the amino acid sequence of SEQ ID NO: 1."

The patent was filed on July 8, 2019, under Application No. 17/597,140.

*For further information, includin...