Patents by Inventor Hermann Spitzer

Hermann Spitzer 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).

  • Coating for a surface subject to exposure to a high-frequency field to prevent interference resulting from secondary electron emission
    Patent number: 4559281
    Abstract: To prevent interference from secondary electron emission, a base member, as of a waveguide, which in operation is exposed to high frequency electric fields is provided with a coating comprising a rough surface layer having a thickness less than its skin depth, and a further layer of high electrical conductivity between said rough layer and said base member, the thickness of said further layer being substantially larger than its skin depth. The rough layer preferably has a ratio of mean depth to mean pitch of its random corrugations substantially larger than 1:2.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: December 17, 1985
    Assignee: Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V.
    Inventors: Heinrich Derfler, Jurgen Perchermeier, Hermann Spitzer