Patents by Inventor Walter Unverzagt

Walter Unverzagt 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).

  • Inking roller for a lithographic printing machine
    Patent number: 5188030
    Abstract: A roller for a printing machine is formed having oleophilic metal cells and hydrophilic ceramic cross pieces. The ceramic material is applied to the outer surface and is then ground away to again expose the metal. An upper portion of the metal is then removed to leave the elevated hydrophilic ceramic cross pieces.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: February 23, 1993
    Assignee: Albert-Frankenthal Aktiengesellschaft
    Inventors: Helmut Puschnerat, Walter Reutter, Walter Unverzagt