Patents by Inventor Farrell D. Rowsell

Farrell D. Rowsell 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 for aiding microbial degradation of spilled oil
    Patent number: 5342525
    Abstract: Oil spills on natural bodies of water can be cleaned up through the use of flocculation/microorganism compositions including amine-substituted clay flocculation agents and microorganisms including bacillus species, pseudomonas species, azobacter species and xanthomonas species.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: August 30, 1994
    Inventor: Farrell D. Rowsell
  • Method for herding and/or recovering spilled oil
    Patent number: 5176831
    Abstract: Oil spills on natural bodies of water are treated with amine-substituted water swelling clays. The organoclays are added to oil spills in an amount which herds oil into islands of oil separated by surfaces of water containing no oil. The clays can also be added to oil spills in an amount which produces quasisolid, buoyant organoclay/oil flocculate clumps which float in the water and which are amenable to collection from the surface of the water.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: January 5, 1993
    Inventor: Farrell D. Rowsell
  • Method of preparing solidified and stabilized hazardous or radioactive liquids
    Patent number: 5098612
    Abstract: An aqueous liquid or sludge waste is solidified by mixing it with a clay selected from the group consisting of sodium Montmorillonite, attapulgite, sepiolite, and mixtures thereof and a cementitious material coated with a fluid silicone polymer.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: March 24, 1992
    Inventor: Farrell D. Rowsell
  • Hazardous and radioactive liquid waste disposal method
    Patent number: 4775494
    Abstract: An improved method of disposing of radioactive or hazardous liquids comprises placing the liquids in a container and adding a sodium montmorillonite over intervals until the composition is substantially solid in the container.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: October 4, 1988
    Inventors: Farrell D. Rowsell, James W. Ayres
  • Hazardous and radioactive liquid waste disposal method
    Patent number: RE33955
    Abstract: An improved method of disposing of radioactive or hazardous liquids comprises placing the liquids in a container and adding a sodium montmorillonite over intervals until the composition is substantially solid in the container.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: June 9, 1992
    Inventors: Farrell D. Rowsell, James W. Ayres