ALEXANDRIA, Va., July 21 -- United States Patent no. 12,688,094, issued on July 21, was assigned to MICROSOFT TECHNOLOGY LICENSING LLC (Redmond, Wash.).

"Generating diffs between archives using a generic grammar" was invented by Mark W. Zagorski (Redmond, Wash.), Mario Henrique Santos Da Silva (Redmond, Wash.) and Elijah Wigmore (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "The techniques disclosed herein generate minimally sized diff archives. As a result, bandwidth, storage, and processing costs of storing or transmitting an archive are reduced. In some configurations, a diff archive is generated utilizing specific knowledge of the structure of the source and target archives it is derived from. S...