Patents by Inventor David Henry Clemens

David Henry Clemens 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).

  • Method of decolorizing sugar solutions with hybrid ion exchange resins
    Patent number: 3966489
    Abstract: Hybrid copolymers are prepared by at least partially filling the voids of a macroreticular copolymer with a gel-type, cross-linked copolymer of either the same monomers or a copolymer of different type monomers. The hybrid copolymers can be readily converted into ion exchange resins. Such resins have markedly improved physical and chemical properties, including improved ion exchange properties. Such resins are also especially useful for decolorizing sugar solutions.
    Type: Grant
    Filed: December 21, 1973
    Date of Patent: June 29, 1976
    Assignee: Rohm and Haas Company
    Inventors: James Henry Barrett, David Henry Clemens