Patents by Inventor Jan W. A. M. Koolen

Jan W. A. M. Koolen 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).

  • Apparatus for separating a product of sublimation from a gas
    Patent number: 3961665
    Abstract: Apparatus for separating a product of sublimation from a gas, in which this product is condensed in solid form on the cooling surface of a bank of parallel tubes of unequal length, so arranged that near the vapor inlet, where the solid deposits are first settling on the tubes, the distance between the tubes present there, is greater than in locations inside the apparatus farther from the inlet.
    Type: Grant
    Filed: October 8, 1974
    Date of Patent: June 8, 1976
    Assignee: Ultracentrifuge Nederland N.V.
    Inventors: Johannes Langbroek, Jan W. A. M. Koolen