Patents by Inventor Dietmar Widmann

Dietmar Widmann 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).

  • Exhaust muffler, two-stroke engine or four-stroke engine having an exhaust muffler, and catalytic converter for an exhaust muffler
    Patent number: 11813569
    Abstract: An exhaust muffler has an exhaust inlet, an exhaust outlet, as well as a catalytic converter which, in the flow direction, is disposed between the exhaust inlet and the exhaust outlet. The catalytic converter has at least one throughflow body which includes at least one wire body. At least one first component region of the throughflow body is coated with a catalytically functioning coating. The throughflow body moreover has a second component region which in terms of volume has a smaller quantity of catalytically functioning coating than the first component region.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: November 14, 2023
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Niels Kunert, Dietmar Widmann, Martin Christoph Arenz, Michael Dietenberger, Johannes Alber, Jan-Eilert Kueper, Marcus Bonifer, Hans Hildenbrand
  • EXHAUST MUFFLER, TWO-STROKE ENGINE OR FOUR-STROKE ENGINE HAVING AN EXHAUST MUFFLER, AND CATALYTIC CONVERTER FOR AN EXHAUST MUFFLER
    Publication number: 20220305440
    Abstract: An exhaust muffler has an exhaust inlet, an exhaust outlet, as well as a catalytic converter which, in the flow direction, is disposed between the exhaust inlet and the exhaust outlet. The catalytic converter has at least one throughflow body which includes at least one wire body. At least one first component region of the throughflow body is coated with a catalytically functioning coating. The throughflow body moreover has a second component region which in terms of volume has a smaller quantity of catalytically functioning coating than the first component region.
    Type: Application
    Filed: March 29, 2022
    Publication date: September 29, 2022
    Inventors: Niels Kunert, Dietmar Widmann, Martin Christoph Arenz, Michael Dietenberger, Johannes Alber, Jan-Eilert Kueper, Marcus Bonifer, Hans Hildenbrand