Patents by Inventor Helmut Henze

Helmut Henze 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).

  • Patent number: 4433009
    Abstract: In accordance with the method of manufacturing printed circuits, a base material is provided with a plurality of holes in correspondence with the required conductors pattern, the base material with the holes is coated by a photopolymer layer, the photopolymer layer is selectively exposed and developed so as to release zones and boreholes for forming conductive paths, solder eyes and connecting contacts between both sides of the plate, then the layer of the current conductive material is applied in the regions of the thus released zones and boreholes so as to form the above-mentioned conductive paths, solder eyes and connecting contacts.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: February 21, 1984
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Henze, Ronald Capell