Patents by Inventor Herman Albert Zondag

Herman Albert Zondag 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).

  • Use of variable reflective material (varem)
    Publication number: 20050173716
    Abstract: The present invention relates to the use of a variable reflective material (VAREM), which material can be considered to be an assembly of thin layers of metal alloys, whose optical properties can be varied between reflecting and absorbing in the optical part of the spectrum. Another object of the present invention is to provide a device for converting solar energy into thermal energy and possibly electric energy, which device is provided with an optically variable coating, which can be controlled in such a manner that the transmissivity to sunlight thereof can be varied as needed.
    Type: Application
    Filed: March 27, 2003
    Publication date: August 11, 2005
    Inventors: Wilhelmus Van Helden, Herman Albert Zondag