Patents by Inventor Roger Joyce Erven

Roger Joyce Erven 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).

  • Patent number: 6143254
    Abstract: An emissions reduction system comprising an emission gas inlet for receiving emissions-containing gas, and an emissions reducing device for reducing emissions contained in the emissions-containing gas. The emissions reducing device is coupled at a first end thereof to the emission gas inlet and an emission gas outlet is coupled at a second end of the emissions reducing device for releasing emissions-reduced gas. The emissions reducing device comprises: a torturous fluid channel, lava material displaced within the torturous fluid channel wherein the lava material is located within a set of self contained containers within the emissions reducing device.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: November 7, 2000
    Inventors: Roger Joyce Erven, Gene J. Bemel