Patents by Inventor Ralph Knüppel

Ralph Knüppel 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).

  • ROLLER MAT FOR INSTALLATION IN A FLOOR AREA OF THE FREIGHT COMPARTMENT
    Publication number: 20180251305
    Abstract: A roller mat includes roller elements, an upper shell which is provided with openings for receiving the roller elements, a lower shell and a foam element which is arranged between the upper shell and the lower shell. The foam element is provided with recesses which are for receiving the roller elements and which are aligned with the openings constructed in the upper shell in the region of an upper side facing the upper shell.
    Type: Application
    Filed: February 27, 2018
    Publication date: September 6, 2018
    Inventors: Sascha Nowarre, Ralph Knüppel, Uwe Panzram, Stephan Kahle, Thomas Wellbrock