Patents by Inventor Jan Polman

Jan Polman 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).

  • Window comprising two window panes which are arranged at a distance from each other
    Patent number: 4155205
    Abstract: A double-glazed window, in which the intermediate space contains moist air, includes at least one readily heat-conducting element providing exclusive thermal contact between the intermediate space and the outside air. A capillary structure is associated with at least a part of the surface of the end of the element in heat-exchanging contact with the intermediate space.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: May 22, 1979
    Assignee: U.S. Philips Corporation
    Inventor: Jan Polman