Patents by Inventor Ralf Utermohlen

Ralf Utermohlen 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 and conditioning system for regenerating replacement filters
    Patent number: 5833766
    Abstract: The invention relates to a method and a conditioning system for regenerating replacement filters, a stackable transport container for use in such a system, and a replacement filter for regeneration by such a method. The following method steps are proposed for this purpose: removal of fluid residues from the replacement filter, flushing the filter element with a flushing agent opposite the direction of flow through the replacement filter when in use, removing the flushing medium residue from the replacement filter, measuring the flow resistance of the filter element, and comparing the measured flow resistance with one or more preset limit values.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: November 10, 1998
    Inventors: Mark Osterwald, Marco Hein, Ralf Utermohlen