Patents by Inventor Stefan Rumpp

Stefan Rumpp 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).

  • Filter structure
    Patent number: 6641636
    Abstract: A filter unit for a motor vehicle which combines an intake air filter for an internal combustion engine and an interior ventilation air filter for a passenger compartment in a single unit. Filter housings for the respective filters may be joined to each other by a releasable connection, such as a combination of attachment hooks and screw fasteners, or they may be formed integrally with each other in one piece.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: November 4, 2003
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventors: Michael Willig, Stefan Rumpp
  • Filter structure
    Publication number: 20020017084
    Abstract: A filter unit for a motor vehicle which combines an intake air filter for an internal combustion engine and an interior ventilation air filter for a passenger compartment in a single unit. Filter housings for the respective filters may be joined to each other by a releasable connection, such as a combination of attachment hooks and screw fasteners, or they may be formed integrally with each other in one piece.
    Type: Application
    Filed: June 22, 2001
    Publication date: February 14, 2002
    Inventors: Michael Willig, Stefan Rumpp