ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,927, issued on June 2, was assigned to SPIBER TECHNOLOGIES AB (Stockholm).

"Engineered spider silk proteins and uses thereof" was invented by Anna Rising (Uppsala, Sweden), Jan Johansson (Stockholm) and Marlene Andersson (Uppsala, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A recombinant spider silk protein, consisting of no more than 800 amino acids, comprising a set of domains arranged according to the formula (NT)-REP-CT, wherein: the optional NT-domain, if present, comprises a sequence of 100 to 160 amino-acid residues derived from the N-terminal domain of a spider silk protein; the REP-domain comprises a sequence of 30 to 600 amino aci...