ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,505, issued on July 29, was assigned to H2DIESEL INC. (Lewes, Del.).

"Hydro-diesel engine system having separate agitation mixing and chemical mixing of hydrogen gas into liquid diesel fuel" was invented by John S. Petterson (La Jolla, Calif.) and John L. Haller (La Jolla, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydro-diesel engine system, including: (a) a hydrogen gas supply and a liquid diesel fuel supply; (b) a bubbilizer configured to agitatedly mix some of the hydrogen gas into diesel fuel to form a mixture of small bubbles of hydrogen gas in the liquid diesel fuel which is then sent into a hydro-diesel engine; together with (c)...