Patents by Inventor Ralf KEMMER

Ralf KEMMER 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).

  • Patent number: 10100894
    Abstract: Extension for a cylinder of a vibration damper comprising a base and a tube portion adjoining the latter. The base and the tube portion are formed in one piece. The tube portion has a circumferential bend pleat with respect to the base.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: October 16, 2018
    Assignee: ZF Friedrichshafen AG
    Inventors: Robert Dreher, Sebastian Ramer, Ralf Kemmer, Krzysztof Zielecki
  • Publication number: 20170074343
    Abstract: Extension for a cylinder of a vibration damper comprising a base and a tube portion adjoining the latter. The base and the tube portion are formed in one piece. The tube portion has a circumferential bend pleat with respect to the base.
    Type: Application
    Filed: September 14, 2016
    Publication date: March 16, 2017
    Inventors: Robert DREHER, Sebastian RAMER, Ralf KEMMER, Krzysztof ZIELECKI