Patents by Inventor John-Edwin Roth

John-Edwin Roth 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).

  • Process for the disposal of waste
    Patent number: 5026208
    Abstract: The accumulated waste is pressed under high pressure to form blocks or boards having high strength, low elutability and low permeability, then packed in film individually or in stacks in a dust-tight and water-tight manner and deposited in this form on a dump like building bricks. The process can be used universally for all waste which is available as bulk material and has no coarse components, such as stones, metal pieces and the like.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: June 25, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Beyer, Bernd Koglin, Rolf Rink, John-Edwin Roth