ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,456, issued on Dec. 2, was assigned to Universal Quantum Ltd (Brighton, Great Britain) and University of Sussex (Brighton, Great Britain).

"Relating to methods for digital to analogue converters in surface ion traps" was invented by Zak David Romaszko (Brighton, Great Britain), Iain McIntosh Hunter (Brighton, Great Britain) and Harold Godwin (Brighton, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A surface ion trap comprising a plurality of electrodes and DACs, each electrode being controlled by a DAC, wherein a first set of DACs control the electrodes configured to trap an ion in a first area and a second set of DACs control the elec...