ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,331, issued on May 27, was assigned to Evonik Operations GmbH (Essen, Germany).

"System and method for determining parameters for foam production" was invented by Rudiger Landers (Osterode, Germany), Philipp Tomuschat (Essen, Germany) and Jorn Kiwitt (Essen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method determines machine parameters of a foam production machine is provided. The foam production machine includes a mixing head configured to mix precursor reagents for forming a reactive mixture, a plurality of inclined fall plates, where a first inclined fall plate is configured to receive the reactive mixture, and where each inclined ...