US Patent Issued to E. & J. Gallo Winery on July 21 for "Hollow fiber and a process for preparation thereof" (Dutch, Danish Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,685,972, issued on July 21, was assigned to E. & J. Gallo Winery (Modesto, Calif.).

"Hollow fiber and a process for preparation thereof" was invented by Mehrdad Mohammadifakhr (Enschede, Netherlands), Antoine Kemperman (Enschede, Netherlands), Joris de Grooth (Enschede, Netherlands) and Krzysztof Trzaskus (Kgs. Lyngby, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for preparing a hollow fiber includes the steps of providing a dope solution including polyamide imide (PAI), providing an aqueous bore solution including polyethylene imine (PEI), extruding the dope solution in an cross-sectional annular shape and ejecting the bore solution...