ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,226, issued on Sept. 23, was assigned to DelStar Technologies Inc..
"Fluoroplastic support membrane" was invented by Andrew G. Platt (Middletown, Del.), Ronald Federico (Chadds Ford, Pa.) and Joel Patrick Trojnar (Smyrna, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Support membranes for filters are described that include a support sheet formed of a polymeric material and a continuous base section having opposed outer surfaces and spaced-apart ribs extending outwardly from at least one of the opposed outer surfaces. The spaced-apart ribs define continuous flow channels bound by the adjacent spaced-apart ribs. The ratio of the height of the ri...