Patents by Inventor Valvo Raag

Valvo Raag 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).

  • Low power high voltage thermopile
    Patent number: 4032363
    Abstract: An electrical power generating array of a semiconductor, laminar structured thermopile for producing low values of electrical power at high values of direct output voltage and a method for its manufacture including the step of lapping opposed semiconductor layers bonded on opposite sides of a glass layer to achieve a predetermined thinness.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: June 28, 1977
    Assignee: Syncal Corporation
    Inventor: Valvo Raag