Patents by Inventor Joseph P. H. Theunissen

Joseph P. H. Theunissen 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).

  • Silicate products
    Patent number: 5393507
    Abstract: The characteristics of compacted sodium silicate, in particular the bulk density, are improved by heating the material at an elevated temperature in an agitated bed. Bulk density in the region of 1 kg/liter can be obtained.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: February 28, 1995
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Joseph P. H. Theunissen, Theo Osinga