Patents by Inventor Wilhelm Kapfhammer

Wilhelm Kapfhammer 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).

  • Method for production of rotationally symmetric non-spherical optical elements
    Patent number: 4032343
    Abstract: A method and arrangement for the production of a rotationally symmetric, non-spherical optical element, in which one or more light beams are directed at a rotating light-sensitive medium, and a fixed opaque shield is situated over the light-sensitive medium to block a portion of the light beams from exposing the medium.
    Type: Grant
    Filed: February 13, 1974
    Date of Patent: June 28, 1977
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Reinhold Deml, Ulrich Greis, Wilhelm Kapfhammer