Patents by Inventor Alan G. Seech

Alan G. Seech 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).

  • Composite material for a permeable reactive barrier
    Patent number: 7347647
    Abstract: Compositions in accordance with the principles of the present invention comprise a compressed mixture of fibrous organic materials and multi-valent metals used to remove organic chemical contaminants. The compositions are made into a pre-shaped, compressed form used to form a permeable reactive barrier for decontamination of soils, sediments, sludges, and waters containing environmental pollutants. The compressed mixture, comprising the fibrous organic particles and one or more multivalent metallic particles, is formed into reactive pellets, granules, and other pre-shaped structures for use in constructing a reactive barrier, typically for use in a contaminated environment or in an industrial process. By way of example, the pre-shaped structure may be used to construct a reactive barrier to remove halogenated organic chemical contaminants, nitroaromatic organic contaminants, or certain inorganic contaminants from various terrestrial and aquatic based ecosystems.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: March 25, 2008
    Assignee: Adventus Intellectual Property Inc.
    Inventors: Alan G. Seech, David D. Hill, Evica Dmitrovic, Kerry W. Bolanos-Shaw
  • Composition and method for degradation of nitroaromatic contaminants
    Patent number: 5618427
    Abstract: A method of creating an environment which promotes degradation of nitroaromatic organic chemical contaminants in water, sediment, or soil by adding a combination of fibrous organic matter and certain multi-valent metal particles to the water, sediment or soil.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: April 8, 1997
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Alan G. Seech, James E. Cairns, Igor J. Marvan
  • Composition for dehalogenation and degradation of halogenated organic contaminants
    Patent number: 5480579
    Abstract: A method of creating an environment which promotes dehalogenation and/or degradation of halogenated organic chemical contaminants in water, sediment, or soil by adding a combination of fibrous organic matter and certain multi-valent metal particles to the water, sediment or soil.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: January 2, 1996
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Alan G. Seech, James E. Cairns, Igor J. Marvan
  • Method for dehalogenation and degradation of halogenated organic contaminants
    Patent number: 5411664
    Abstract: A method of creating an environment which promotes dehalogenation and/or degradation of halogenated organic chemical contaminants in water, sediment, or soil by adding a combination of fibrous organic matter and certain multi-valent metal particles to the water, sediment or soil.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: May 2, 1995
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Alan G. Seech, James E. Cairns, Igor J. Marvan