Patents by Inventor Roger Castillon

Roger Castillon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Monolithic ceramic supports for filtration membranes
    Patent number: 5415775
    Abstract: Porous monolithic ceramic support substrates, well suited for consolidating inorganic filtration membranes thereto, e.g., micro/ultrafiltration membranes, to provide composite inorganic micro/ultrafiltration devices, have a mean equivalent pore diameter Ds ranging from 1 to 20 .mu.m and a pore volume greater than 30%, and comprise ceramic alumina particulates at least partially coated with TiO.sub.2 particles, wherein the percentage by weight of TiO.sub.2, with respect to the total weight of Al.sub.2 O.sub.3 plus TiO.sub.2, ranges from 1% to 75%.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: May 16, 1995
    Assignee: Techsep
    Inventors: Roger Castillon, Jean-Paul Laveniere