Patents by Inventor Paul N. Gauvin

Paul N. Gauvin 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).

  • Filter materials
    Patent number: 5738119
    Abstract: Cigarette filters which comprise hydroentangled lyocell staple fibers are disclosed. High filter efficiencies, good taste properties, good resistance to staining, good physical resilience and good air flow characteristics are observed when cigarettes containing such filters are smoked.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: April 14, 1998
    Assignee: Courtaulds Fibres (Holdings) Limited
    Inventors: William B. Edwards, III, Navin Gautam, Paul N. Gauvin, Donald E. Laslie, Kenneth A. Newman, Calvin R. Woodings
  • Filter cigarette
    Patent number: 5178166
    Abstract: A filter cigarette comprising a tobacco rod and filter portion comprising a fluted tubular extrusion. The flutes are blocked intermediate the rod end and mouth end of the extrusion. The tobacco rod is circumferentially wrapped with a porous wrapper comprising a longitudinal band of perforations. The fluted tubular extrusion is attached with tipping paper to the tobacco rod. A mouthband and a rodband of perforations circumscribes the tipping paper. A rod of charcoal-impregnated filter material may abut the tubular extrusion.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: January 12, 1993
    Assignee: Philip Morris Incorporated
    Inventors: Reginald W. Newsome, Alexander S. Gergely, Richard A. Thesing, William T. Callaham, Paul N. Gauvin, Warren E. Claflin, Walter A. Nichols
  • Filter cigarette
    Patent number: 4848375
    Abstract: A filter cigarette is provided in which the smoker can select different flavorants or filter media for interposition in the smoke stream. A filter segment having two flow paths, each containing different flavoring or filtering media, cooperates with one or two rotatable end caps having openings for selective registration with the flow paths, are used to select the desired flow path. A method of delivering "air-swept flavor" is also provided.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: July 18, 1989
    Assignee: Philip Morris Incorporated
    Inventors: Gregorio I. Patron, Walter A. Nichols, Paul N. Gauvin, Francis M. Sprinkel, Jr.