ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,705, issued on May 6, was assigned to Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V. (Munich).

"Method for stimulating the growth of a biomass, contained in a liquid, inside a bioreactor" was invented by Volker Kirchhoff (Dresden, Germany), Andre Weidauer (Dresden, Germany), Jessy Schonfelder (Dresden, Germany), Gaby Gotzmann (Dresden, Germany), Christiane Wetzel (Dresden, Germany) and Jorg Kubusch (Dresden, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method may be provided for stimulating the growth of a biomass, which is mixed with a liquid inside a bioreactor, by means of ionising radiation. The following method...