Patents by Inventor Hiepke Boerma

Hiepke Boerma 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).

  • Nickel boride-polymer catalyst
    Patent number: 4696911
    Abstract: Nickel boride hydrogenation catalysts stabilized with polyvinylpyrrolidone, having constant excellent quality, are prepared by incorporating glycerol monooleate before the alcohol is evaporated off.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: September 29, 1987
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Hiepke Boerma, Rudolph O. de Jongh, Cornelis Van Dijk
  • Catalysts
    Patent number: 3959181
    Abstract: A process for preparing a supported nickel catalyst is described in which precipitation of the nickel on a support occurs by mixing an aqueous solution of a nickel salt, a solution of an alkali metal carbonate and an alkali metal hydroxide containing, by weight of the hydroxide, at least 10% of the carbonate and a support to form a suspension which during the whole of the precipitation is between 75.degree. and 100.degree.C, is at a pH between 8.0 and 10 and has an alkalinity greater than 0.010N.
    Type: Grant
    Filed: December 12, 1972
    Date of Patent: May 25, 1976
    Assignee: N.V. Internationale Octrooi Maatschappij "Octropa"
    Inventor: Hiepke Boerma