Patents by Inventor David E. Creighton

David E. Creighton 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).

  • Smoking articles
    Patent number: 5050621
    Abstract: There is provided a smoking article comprising a heating unit, aerosol generation section in flow communication at a first end thereof with said heating unit, nicotine source in flow communication at a first end thereof with the heating unit, a mixing space with which said aerosol generation section and nicotine source means are in flow communication at or via respective second ends thereof, and a velocity accelerating orifice in flow communication with the mixing space.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: September 24, 1991
    Assignee: British-American Tobacco Company Limited
    Inventors: David E. Creighton, Colin C. Grieg
  • Smoking articles
    Patent number: 4644963
    Abstract: A cigarette comprises a mouthpiece attached to a cigarette rod by a wrapper which bounds a ventilation air chamber of the mouthpiece. One or more orifices intercommunicate the air chamber with a smoke passage of the mouthpiece. The orifice(s), rather than the air flow impedance of the wrapper controls the degree of ventilation of the mouthpiece.
    Type: Grant
    Filed: May 7, 1985
    Date of Patent: February 24, 1987
    Assignee: British-American Tobacco Company Limited
    Inventor: David E. Creighton