ALEXANDRIA, Va., June 2 -- United States Patent no. 12,645,824, issued on June 2, was assigned to Couchbase Inc. (Santa Clara, Calif.).

"Data synchronization based on access control changes" was invented by Benjamin Keith Brooks (Crewe, Great Britain), Adam C. Fraser (Union City, Calif.) and Jacques Rascagneres (Northwich, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system replicates and synchronizes data objects between a source system and a target system while managing changes in user access control, even when the target system is offline. Initially, a set of data objects accessible to a user based on their access control specification is sent from the source system to the target system....