Patents by Inventor Margaret L. Carman

Margaret L. Carman 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).

  • Methods for microbial filtration of fluids
    Patent number: 5487834
    Abstract: Novel methods for purifying contaminated subsurface groundwater are disclosed. The method is involves contacting the contaminated subsurface groundwater with methanotrophic or heterotrophic microorganisms which produce contaminant-degrading enzymes. The microorganisms are derived from surface cultures and are injected into the ground so as to act as a biofilter. The contaminants which may be treated include organic or metallic materials and radionuclides.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: January 30, 1996
    Assignee: The Regents of the University of California
    Inventors: Margaret L. Carman, Kenneth J. Jackson, Richard B. Knapp, John P. Knezovich, Nilesh N. Shah, Robert T. Taylor