ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,335, issued on May 13, was assigned to Hahn-Schickard-Gesellschaft fuer angewandte Forschung e.V. (Villingen-Schwenningen, Germany).

"Apparatus and method for directing a liquid through a porous medium" was invented by Daniel Kainz (Freiburg im Breisgau, Germany), Nils Paust (Freiburg im Breisgau, Germany), Yunpeng Zhao (Pfaffenweiler, Germany) and Susanna Fruh (Freiburg im Breisgau, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for directing a liquid through a porous medium includes a fluidic module rotatable about a center of rotation and including a fluid chamber and an inflow structure. A porous medium is disposed in the fl...