ALEXANDRIA, Va., July 14 -- United States Patent no. 12,681,098, issued on July 14, was assigned to AIRBUS HELICOPTERS DEUTSCHLAND GMBH (Donauworth, Germany).

"Method of determining a remaining operating time of an electrical energy storage unit in an aircraft" was invented by Michael Geiss (Mottingen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of determining a remaining operating time of an electrical energy storage unit in an aircraft, comprising: using a first sensor arrangement for measuring first performance parameters of the electrical energy storage unit; determining first performance indicators based on the first performance parameters; using at least one second sensor arrangemen...