Patents by Inventor Gerhard Klause

Gerhard Klause 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).

  • Pushbutton for use with pushbutton switches
    Patent number: 4251703
    Abstract: For physically disabled persons suffering from a disturbed coordination of movements it is necessary for the operating keys of e.g., telephone subsets, to be made variable with respect to the operating pressure. For this purpose the push-button head is designed in such a way that additional compression springs can be inserted or removed from above.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: February 17, 1981
    Assignee: International Standard Electric Corporation
    Inventors: Siegfried Hoeft, Gerhard Klause