ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,921, issued on July 14, was assigned to Chemspeed Technologies AG (Fullinsdorf, Switzerland).
"Method and device for producing a film-shaped test body" was invented by Rolf Gueller (Herznach, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for producing a film-shaped test body from a solidifiable test substance includes a substrate on which a substance film is formed from test substance applied to the substrate. The device further includes a film-detachment tool having an adhesive surface with which the tool can be placed on the substance film formed on the substrate, the film-detachment tool being shaped so that it leaves a sub-...