US Patent Issued to OBRIST TECHNOLOGIES on June 9 for "Aircraft" (Austrian Inventor)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,649,581, issued on June 9, was assigned to OBRIST TECHNOLOGIES GMBH (Lustenau, Austria).

"Aircraft" was invented by Frank Obrist (Bregenz, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an aircraft comprising a drive system having a power unit, at least one drive battery, and at least one electric motor drawing electrical energy from the at least one drive battery, wherein the power unit comprises a two-cylinder reciprocating-piston engine having two cylinder-piston units in tandem arrangement and comprises at least one generator for generating electrical energy, wherein each cylinder-piston unit has a crankshaft, and whe...