Patents by Inventor Dwayne A. Rollag

Dwayne A. Rollag 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).

  • Method and apparatus for the enhanced treatment of food processing waste waters using aerobic microorganisms
    Patent number: 4201663
    Abstract: A method and apparatus for treating waste water, containing large quantities of organic material, by means of an aerobic bacteriological process which uses a plastic film to support an air transport system and a blanket of inexpensive biodegradable material which provides the functions of heat insulation, odor absorption/adsorption and mechanical support for attached aerobic microorganisms which act to decompose odorous gases.
    Type: Grant
    Filed: September 7, 1978
    Date of Patent: May 6, 1980
    Inventors: Dwayne A. Rollag, James N. Dornbush, Robert C. Renner