Patents by Inventor Heinz Kern

Heinz Kern 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 increasing the resistance of igniter elements of given geometry
    Patent number: 4294648
    Abstract: A method for increasing the resistance of an igniter element of given geometry in an electrical circuit to a predetermined, specific value by the removal of resistance material, which comprises heating the resistance material situated between two acid-resistance electrodes simultaneously etching the resistance material with acid until the desired resistance value has been established.
    Type: Grant
    Filed: February 26, 1980
    Date of Patent: October 13, 1981
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Uwe Brede, Heinz Kern