Patents by Inventor Ronato Chiarizia

Ronato Chiarizia 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).

  • Phosphonic acid based ion exchange resins
    Patent number: 5539003
    Abstract: An ion exchange resin for extracting metal ions from a liquid waste stream. An ion exchange resin is prepared by copolymerizing a vinylidene diphosphonic acid with styrene, acrylonitrile and divinylbenzene.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: July 23, 1996
    Assignees: University of Tennessee Research Corporation, Arch Development Corporation
    Inventors: E. Philip Horwitz, Spiro D. Alexandratos, Ralph C. Gatrone, Ronato Chiarizia
  • Phosphonic acid based exchange resins
    Patent number: 5449462
    Abstract: An ion exchange resin for extracting metal ions from a liquid waste stream. An ion exchange resin is prepared by copolymerizing a vinylidene diphosphonic acid with styrene, acrylonitrile and divinylbenzene.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: September 12, 1995
    Assignees: Arch Development Corp., University of Tennessee Research Corporation
    Inventors: E. Philip Horwitz, Spiro D. Alexandratos, Ralph C. Gatrone, Ronato Chiarizia
  • Phosphonic acid based ion exchange resins
    Patent number: 5281631
    Abstract: An ion exchange resin for extracting metal ions from a liquid waste stream. An ion exchange resin is prepared by copolymerizing a vinylidene disphosphonic acid with styrene, acrylonitrile and divinylbenzene.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: January 25, 1994
    Assignee: Arch Development Corp.
    Inventors: E. Philip Horwitz, Spiro D. Alexandratos, Ralph C. Gatrone, Ronato Chiarizia