ALEXANDRIA, Va., July 9 -- United States Patent no. 12,355,869, issued on July 8, was assigned to QUBITRIUM TEKNOLOJI SANAYI VE TICARET A.S. (Istanbul).

"System and method for quantum key distribution with entangled photon pairs" was invented by Kadir Durak (Istanbul) and Melis Pahali (Istanbul).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and a method for entanglement-based quantum key distribution (QKD) are provided. The photons used for quantification of security and forming of the raw key can be reallocated, and wasted photons' information may be recycled. Accordingly, a system for quantum key distribution including a photon source configured to generate entangled photon pair including first an...