Patents by Inventor Christopher B. Hansen

Christopher B. Hansen 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).

  • Patent number: 6994794
    Abstract: Filtration media having germicidal for use in filtering particles and deactivating, removing and/or destroying microorganisms from a feed liquid passing through the media. The filtration media includes an effective amount of at least one germicidal agent associated to monomers polmerized and chemically grafted and covalently bonded to the surface of the media. The germicidal filter media is prepared by contacting the media with a grafting solution comprising one or more monomers, a catalyst, a surface agent, a curign agent, at least one graft initiator, and at least on germicide and subsequently curing the media at an elevated temperature to chemically graft the polmerizable monomers onto a surface of the media and associate at least one germicide thereto. Filter media suitable for use in the present invention include ceramic spheroids, hollow glass spheres, polmeric type meida, thermoset coated glass spheres, and crystalline microporous materials, such as zeolites.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: February 7, 2006
    Assignee: Kinetico Incorporated
    Inventors: Christopher B. Hansen, Samuel Mason, Mohan L. Sanduja, Carl Horowitz, Paul Thottathil, Felicia Dragnea
  • Publication number: 20040050799
    Abstract: Filtration media having germicidal for use in filtering particles and deactivating, removing and/or destroying microorganisms from a feed liquid passing through the media. The filtration media includes an effective amount of at least one germicidal agent associated to monomers polmerized and chemically grafted and covalently bonded to the surface of the media. The germicidal filter media is prepared by contacting the media with a grafting solution comprising one or more monomers, a catalyst, a surface agent, a curign agent, at least one graft initiator, and at least on germicide and subsequently curing the media at an elevated temperature to chemically graft the polmerizable monomers onto a surface of the media and associate at least one germicide thereto. Filter media suitable for use in the present invention include ceramic spheroids, hollow glass spheres, polmeric type meida, thermoset coated glass spheres, and crystalline microporous materials, such as zeolites.
    Type: Application
    Filed: May 22, 2003
    Publication date: March 18, 2004
    Inventors: Christopher B. Hansen, Samuel Mason, Mohan L. Sanduja, Carl Horowitz, Paul Thotathil, Felicia Dragnea