Patents by Inventor Hans-Jurgen Leidig

Hans-Jurgen Leidig 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).

  • Duct element for the exhaust system of a motor vehicle
    Patent number: 9638358
    Abstract: A duct element for the exhaust system of a motor vehicle with an internal combustion engine, including at least one flexible duct part, preferably a bellows. The flexible duct part is embodied at least partially from a first type of steel with a Mo-content ?4% or ?6% and with a N-content from 0.3% to 0.6% or from 0.18% to 0.25%, preferably embodied from steel of the type 1.4565 or the type 1.4547. Furthermore a decoupling element is provided for motor vehicles with an internal combustion engine and a respective use of steel embodied with a Mo-content ?4% or ?6% and a N-content from 0.3% to 0.6% or from 0.18% to 0.25%, preferably steel of the type 1.4565 or 1.4547.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: May 2, 2017
    Assignee: Witzenmann GmbH
    Inventors: Hans-Jurgen Leidig, Bernd Seeger
  • DUCT ELEMENT FOR THE EXHAUST SYSTEM OF A MOTOR VEHICLE
    Publication number: 20140216590
    Abstract: A duct element for the exhaust system of a motor vehicle with an internal combustion engine, including at least one flexible duct part, preferably a bellows. The flexible duct part is embodied at least partially from a first type of steel with a Mo-content ?4% or ?6% and with a N-content from 0.3% to 0.6% or from 0.18% to 0.25%, preferably embodied from steel of the type 1.4565 or the type 1.4547. Furthermore a decoupling element is provided for motor vehicles with an internal combustion engine and a respective use of steel embodied with a Mo-content ?4% or ?6% and a N-content from 0.3% to 0.6% or from 0.18% to 0.25%, preferably steel of the type 1.4565 or 1.4547.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 7, 2014
    Applicant: Witzenmann GmbH
    Inventors: Hans-Jurgen Leidig, Bernd Seeger