Patents by Inventor Erwin Wolff

Erwin Wolff 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).

  • Method for cleaning printing machines and printing moulds
    Patent number: 6544348
    Abstract: A process is proposed for cleaning printing machines or printing plates by removing the contaminants from the surfaces to be cleaned by washing them with a microemulsion comprising water, a surfactant, and a water-immiscible organic solvent.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: April 8, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Stöckigt, Günter Oetter, Erwin Wolff, Erich Frank, Petra Schneider