ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,435, issued on March 25, was assigned to Lilium eAircraft GmbH (Wessling, Germany).

"Battery management system for an electric air vehicle" was invented by Johannes Kurtz (Grosskarolinenfeld, Germany) and Moritz Schuhmann (Munich).

According to the abstract* released by the U.S. Patent & Trademark Office: "A battery management system and method for performing a battery state and, optionally, health parameter observation is disclosed, in particular, cell state-of-charge (SOC) observation, with two redundant, independent and dissimilar lanes. Specifically, a SOC determination in a first one of the lanes is based on Coulomb Counting. The other lane employs a different algorithm tha...