Patents by Inventor Bernd Spachmann

Bernd Spachmann 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).

  • Color photographic recording material
    Patent number: 6548238
    Abstract: The stability of the dyes which are obtained after processing a color photographic material is improved by the addition of a polyvinylcaprolactam.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: April 15, 2003
    Assignee: AGFA-Gevaert
    Inventors: Beate Weber, Bernd Spachmann, Heinz Wiesen
  • Colour photographic recording material
    Publication number: 20020064734
    Abstract: The stability of the dyes which are obtained after processing a color photographic material is improved by the addition of a polyvinylcaprolactam.
    Type: Application
    Filed: July 20, 2001
    Publication date: May 30, 2002
    Inventors: Beate Weber, Bernd Spachmann, Heinz Wiesen