ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,254, issued on July 15, was assigned to Japan Science and Technology Agency (Kawaguchi, Japan).

"Primer, device for producing double-stranded DNA using primer, and method for producing double-stranded DNA using primer" was invented by Hiroshi Abe (Nagoya, Japan), Naoko Abe (Nagoya, Japan), Kosuke Nakamoto (Nagoya, Japan), Hiroki Murase (Nagoya, Japan) and Yasuaki Kimura (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "where A1 represents -S-, -S-S-, or -Se-, B represents a base, and R1 represents a decomposable protecting group, and the symbol * represents a bond to a sugar of an adjacent nucleotide. A device for producing double-strand...