Patents by Inventor Ladislaus Wojtanowitsch

Ladislaus Wojtanowitsch 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).

  • Printing equipment accessory, especially for making proof prints
    Patent number: 5509619
    Abstract: A printing equipment accessory, especially for making proof prints, with at least two rollers forming a roller nip, through which is passed at least one function component of a film from a supply roll, the film having an auxiliary component in addition to the function component, whereby the function component is transferable in the roller nip onto a base. Reuse of the auxiliary component of the film is simplified by such an accessory. The auxiliary component of the film forms a coreless roll.
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: April 23, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Volker Struwe, Ladislaus Wojtanowitsch, Gregor Gehrer, Thomas Brotzner
  • Laminator
    Patent number: 5356507
    Abstract: A laminator to laminate a film on a support, sheet-shaped in particular. A fixed roller operates together with an upper pressure roller and a lower pressure roller, which can be placed selectively on the fixed roller by means of a shifting device. In this manner, the laminator has a supply of two different film materials for selective application onto the support as needed.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: October 18, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ladislaus Wojtanowitsch, Gregor Gehrer, Markus Koll, Alfred Nowak