Patents by Inventor Igor J. Marvan

Igor J. Marvan 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).

  • 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