ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,413, issued on June 10, was assigned to LEADWAY (HK) Ltd. (Hong Kong).
"Potentiometric biosensor and detection method" was invented by Yu Long Sun (Zhejiang, China), Xin Liang Xiang (Zhejiang, China), Yan Cheng (Zhejiang, China) and Li Zhang (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a potentiometric biosensor (100) and a method for detecting urea concentration in a sample. The potentiometric biosensor (100) comprises an indication electrode (23) and a reference electrode (24). A second reaction reagent on the indication electrode (23) comprises a urease but does not comprise an electron transporter. A first reactio...