ALEXANDRIA, Va., June 2 -- United States Patent no. 12,647,934, issued on June 2, was assigned to Hubstar International Ltd. (London).

"Time based indoor location determination" was invented by Stefanos Vatidis (London) and Denis Mequinion (London).

According to the abstract* released by the U.S. Patent & Trademark Office: "A computer system obtaining location data derived from a plurality of data sources, the location data is associated with a user. The location data comprises one or more data points, each of which comprises a location indication, time data associated with the location indication, an indication of the data source from which the location indication was derived, and a confidence score associated with the location indicatio...