ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,755, issued on Nov. 11, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Indoor location-based service" was invented by Borje Felipe Fernandes Karlsson (Redmond, Wash.), Yuanchao Shu (Redmond, Wash.), Ruogu Du (Redmond, Wash.) and Yi Jiang (Redmond, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In implementations of the subject matter described herein, a solution for providing an indoor location-based service is provided. In this solution, a floor plan about a first floor of a first building comprising at least one floor is obtained. A first map for the first floor is generated based on the floor plan. The first map inclu...