ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,338, issued on Nov. 25, was assigned to EUTELSAT SA (Issy-les-Moulineaux, France) and NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK (TNO) (s-Gravenhage, Netherlands).

"Quantum key distribution systems and associated methods" was invented by Alessandro Le Pera (Issy-les-Moulineaux, France), Daniele Vito Finocchiaro (Issy-les-Moulineaux, France), Bob Petrus Franciscus Dirks (Leiden, Netherlands) and Ivan Ferrario (Delft, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "An Entangled photons distribution and measurement system includes a photon source including two outputs, able to generate a pair of entangled photons...