ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,435, issued on Feb. 24, was assigned to Astra Navigation Inc. (The Woodlands, Texas).

"Generating a geomagnetic map" was invented by Alexandre Toutov (Inverary, Canada), Maryna Mukhina (Kyiv, Ukraine) and Svitlana Ilnytska (Kyiv, Ukraine).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one embodiment, a method includes at a mapping server receiving from a plurality of regional servers a plurality of regional magnetic data sets; at the mapping server updating a geomagnetic map with one or more of the regional magnetic data sets, wherein the geomagnetic map comprises one or more of the geographic regions; and from the mapping server communicating one...