Patents by Inventor Alfons Koopmann

Alfons Koopmann 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).

  • Fire engine trailer
    Publication number: 20040050557
    Abstract: The invention concerns a trailer which can be pulled by a conventional towing unit, e.g., a tractor, in particular with reference to its safe use at the scene of a fire, and also concerns improved use of the fire-fighting trailer.
    Type: Application
    Filed: September 10, 2003
    Publication date: March 18, 2004
    Inventor: Alfons Koopmann