ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,611, issued on May 27, was assigned to Nuclera Ltd. (Cambridge, Great Britain).

"Modified terminal deoxynucleotidyl transferase (TdT) enzymes" was invented by Michael Chun Hao Chen (Cambridge, Great Britain), Gordon Ross McInroy (Cambridge, Great Britain), Sihong Chen (Cambridge, Great Britain) and Ian Haston Cook (Cambridge, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to engineered terminal deoxynucleotidyl transferase (TdT) enzymes or the homologous amino acid sequence of PolMu, PolBeta, PolLambda, and PolTheta of any species or the homologous amino acid sequence of X family polymerases of any species and the...