ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,676, issued on April 21, was assigned to Merck Patent GmbH (Darmstadt, Germany).
"Filtration head for vacuum filtration, manifold for vacuum filtration and method of modifying an existing filtration head for vacuum filtration" was invented by Fabrice Comini (Selestat, France), Didier Metz (Stotzheim, France) and Philippe Rivat (Dorlisheim, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum filtration head (1) having a receptacle for a support (2) for a membrane filter (3) for microbiological testing of a liquid substance to be drawn from an upstream side of the membrane filter (3) to a downstream side of the membrane filter (3) through ...