Patents by Inventor Ralf Ohm

Ralf Ohm 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 element, particularly for cleaning combustion air
    Patent number: 7258718
    Abstract: A filter element, in particular for cleaning combustion air for internal combustion engines, arranged in a filter housing composed of a filter medium having at least one end face on which a resilient, synthetic resin sealing bead is arranged which contacts a sealing contour on the filter housing. An identifier element which is completely covered by the sealing bead is arranged in the filter element, for example, within an end disk thereof.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: August 21, 2007
    Assignee: Mann & Hummel GmbH
    Inventors: Klemens Dworatzek, Bertram Uebelhoer, Ralf Ohm
  • Filter element, particularly for cleaning combustion air
    Publication number: 20050044830
    Abstract: A filter element, in particular for cleaning combustion air for internal combustion engines, arranged in a filter housing composed of a filter medium having at least one end face on which a resilient, synthetic resin sealing bead is arranged which contacts a sealing contour on the filter housing. An identifier element which is completely covered by the sealing bead is arranged in the filter element, for example, within an end disk thereof.
    Type: Application
    Filed: July 15, 2004
    Publication date: March 3, 2005
    Applicant: Mann + Hummel GmbH
    Inventors: Klemens Dworatzek, Bertram Uebelhoer, Ralf Ohm