US Patent Issued to NINGXIA EPPEN BIOTECH, TIANJIN UNIVERSITY OF SCIENCE & TECHNOLOGY on Sept. 22 for "Application of transport carrier gene which improves L-tryptophan production efficiency in Escherichia coli" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,188, issued on Sept. 22, was assigned to NINGXIA EPPEN BIOTECH Co. LTD (Ningxia, China) and TIANJIN UNIVERSITY OF SCIENCE & TECHNOLOGY (Tianjin, China).

"Application of transport carrier gene which improves L-tryptophan production efficiency in Escherichia coli" was invented by Xixian Xie (Tianjin, China), Bo Xiong (Tianjin, China), Chunguang Zhao (Ningxia, China), Xiaowei Guo (Ningxia, China), Jiaxuan Men (Tianjin, China) and Aiying Wei (Ningxia, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A transport protein coding gene, and a method for efficient production of L-tryptophan by a strain containing the gene. Specifically, by heterologous e...