Patents by Inventor Charles N. Lehuquet

Charles N. Lehuquet 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: 5123429
    Abstract: A cigarette having a wrapper comprising one to fifty percent by weight of calcium sulphate and/or calcium tartrate exhibits reduced sidestream smoke delivery and increased puff number.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: June 23, 1992
    Assignee: British-American Tobacco Co., Ltd.
    Inventors: Paul D. Case, Charles N. Lehuquet