Patents by Inventor Christiane Bourguignon

Christiane Bourguignon 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).

  • Filtering device and method for neutralizing bad smells
    Patent number: 6068681
    Abstract: The invention discloses a filtering device (1) for neutralizing volatile bad smells present in the atmosphere or carried by a flow of gas (5). The device comprises at least a layer (3) of natural zeolite material of set thickness impregnated with an aqueous solution with, for 100 parts by weight of zeolite, about 5 to about 20 parts by weight of the aqueous solution. This aqueous solution comprises for 1000 parts by weight of water, between about 1 part and about 20 parts by weight of a composite mixture comprising, for one part of ammonium ions or equivalent, one part of at least of one perfuming and/or deodorising composition.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: May 30, 2000
    Assignee: Deotech
    Inventor: Christiane Bourguignon