ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,189, issued on Jan. 13.

"Space propulsion system" was invented by Angelo Minotti (Segni, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A space propulsion system can serve miniaturised satellites, but can be scaled easily, and includes: a combustion chamber implemented by a cylindrical container having cylindrical walls, a first end provided with at least an injection duct for a combustion agent, a fuel and/or a mixture thereof, for the injection according to a direction tangential to the cylindrical walls so as to induce a helical combustion path in the combustion chamber, a possible additional perpendicular injection duct for a fuel or a com...