ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,536,849, issued on Jan. 27, was assigned to Samsara Inc. (San Francisco).

"Map-based notification system" was invented by Derrek Harrison (San Francisco), Ingo Gerhard Wiegand (San Francisco), David Liang (San Francisco), John Charles Bicket (Burlingame, Calif.), Sushant Thakur (San Francisco), James Michael Rowson (Tarrytown, N.Y.), Sylvie Lee (Pittsburgh), Bodecker John DellaMaria (San Francisco) and Kenshiro Nakagawa (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "A map-based notification system configured to perform operations that include: accessing a base-map that comprises a map-tile, the map-tile defining a speed limit of a locatio...