Patents by Inventor Robert Roodman

Robert Roodman 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).

  • pH stable activated carbon
    Publication number: 20050269270
    Abstract: An activated carbon composition is disclosed, which includes an activated carbon and a carboxylic acid containing compound. The activated carbon composition is prepared by immersing an activated carbon in an aqueous solution of a carboxylic acid containing compound. The activated carbon composition is used for purifying aqueous solutions by providing a bed of the activated carbon composition and passing the aqueous solution through the bed of the activated carbon composition. The aqueous solution is passed through the bed such that the flow of the aqueous solution to be purified into the bed and the flow of purified aqueous solution from the bed has a pH differential less than ±1 pH.
    Type: Application
    Filed: August 4, 2005
    Publication date: December 8, 2005
    Applicant: Envirotrol, Inc.
    Inventors: Robert Roodman, Jack Smiley, J. Havelka, Robert Scherrer