ALEXANDRIA, Va., June 9 -- United States Patent no. 12,288,196, issued on April 29, was assigned to Oracle International Corp. (Redwood City, Calif.).

"Sharded permissioned distributed ledgers" was invented by Mark S. Moir (Wellington, New Zealand), Harold Carr (Salt Lake City), Maurice P. Herlihy (Brookline, Mass.) and Isaac Sheff (Ithaca, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sharded, permissioned, distributed ledger may reduce the amount of work and communication required by each participant, thus possibly avoiding scalability bottlenecks that may be inherent in previous distributed ledger implementations and possibly enabling the use of additional resources to translate to increased throu...