ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,391,986, issued on Aug. 19, was assigned to MICROSOFT TECHNOLOGY LICENSING LLC (Redmond, Wash.).
"Anti-counterfeit tags using base ratios of polynucleotides" was invented by Yuan-Jyue Chen (Seattle) and Karin Strauss (Seattle).
According to the abstract* released by the U.S. Patent & Trademark Office: "Multiple polynucleotides with random sequences are collectively used as a molecular anti-counterfeiting tag. The polynucleotides are placed on an item as a molecular identifier of authenticity. Each position within the random sequences is synthesized using a predetermined ratio of nucleoside bases. With this technique the sequence of each polynucleotide is random but the ratio of nucle...