Patents by Inventor Guenter Wallbillitch

Guenter Wallbillitch 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).

  • Seamless and firm joining of the end and/or lateral areas of photosensitive layers
    Patent number: 4883742
    Abstract: For the seamless and firm joining of the end and/or lateral areas of thermoplastically processible photosensitive layers, the end and/or lateral areas of one or more solvent-free and unsupported thermoplastically processible photosensitive layers are overlapped avoiding bubbles and with displacement of the air between the end and/or lateral areas, the total layer material is then heated under pressure and with joining of the overlapping end and/or lateral areas, and the resulting continuously joined photosensitive layer is then aftertreated and smoothed with shaping to exact size.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: November 28, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Wallbillitch, Jan H. Van Heuvelen