Patents by Inventor Ulrich Rendelmann

Ulrich Rendelmann 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).

  • Process for the pretreatment of photographic substrates
    Patent number: 4451497
    Abstract: In a process for the pretreatment of photographic substrates in order to improve adhesion during subsequent coating with photographic emulsions, the corona discharge is carried out under a reduced pressure in order to treat the substrate, resulting in an improvement in the adhesion and wettability which lasts over a long period as well as a reduction in the residual charges generated or left on the substrate by the corona discharge.
    Type: Grant
    Filed: August 20, 1982
    Date of Patent: May 29, 1984
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Friedrich Dolezalek, Gunther Koepke, Ulrich Rendelmann