Patents by Inventor Berthold Wenz

Berthold Wenz 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 of manufacturing a pleated filter material
    Patent number: 5389175
    Abstract: A method and apparatus for the manufacture of a pleated filter from an endless web of filter material scores a web of filter material scored in a scoring station. The web of filter material is then passed with a set pleat spacing into cogbelts. The filter material web is then severed by a cutter into pieces suitable for further processing.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: February 14, 1995
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventor: Berthold Wenz