ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,834, issued on May 27, was assigned to SHENZHEN PRS Ltd. (Shenzhen, China).
"Paraffin shield coating for microscope slide" was invented by Frederick Knute Husher (Shenzhen, China) and Jee Jong Shum (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shield coating on a microscope slide, and particularly a selective application of a paraffin layer to shield biomaterials and inorganic chemical deposits from microbial attack and oxidation, and more particularly, an application of a paraffin layer on a microscope slide as an exposure shield over deposited biomaterial reactive targets. The paraffin shield layer blocks the biomaterial and ch...