Patents by Inventor Wilhelmus A. A. Koevoets

Wilhelmus A. A. Koevoets 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).

  • Fluidized-bed apparatus
    Patent number: 5230794
    Abstract: The invention relates to a three phase separator which comprises a compartment for the substantial separation of the gas-phase, this compartment being equipped with at least one partition which is applied for an internal gaslift circulation.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: July 27, 1993
    Assignee: Biothane Corporation
    Inventors: Joseph J. Heijnen, Wilhelmus A. A. Koevoets, Robert J. Zoetemeyer