Patents by Inventor Harold J. Doss

Harold J. Doss 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: 7650891
    Abstract: The present invention relates to methods for hindering formation of tobacco-specific nitrosamines during processing of dark fire tobacco, as well as a facility in which at least portions of these methods may be conducted. According to the present invention, dark fire tobacco that has been harvested and that is generally green and/or yellow is exposed to an uncontrolled, yet active, ambient airflow so as to provide a substantially aerobic environment about the tobacco. This exposure of the dark fire tobacco to the ambient airflow may be done until the tobacco is substantially brown and/or substantially free of enzymatic activity. Subsequently, the tobacco is exposed to gaseous emissions (e.g., smoke) from combusting sawdust/wood. This step may be conducted at least until the tobacco exhibits a moisture content of no more than about 16% and/or until the tobacco exhibits a gloss or shine on a surface of the tobacco.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: January 26, 2010
    Assignee: Rosswil LLC Ltd.
    Inventors: Lester E. Groves, Harold J. Doss, Robert H. Krauch, Charles L. Vaught, John E. Bunch
  • Patent number: 7650892
    Abstract: The present invention relates to methods for hindering formation of tobacco-specific nitrosamines during processing of dark fire tobacco, as well as a facility in which at least portions of these methods may be conducted. According to the present invention, dark fire tobacco that has been harvested and that is generally green and/or yellow is exposed to an uncontrolled, yet active, ambient airflow so as to provide a substantially aerobic environment about the tobacco. This exposure of the dark fire tobacco to the ambient airflow may be done until the tobacco is substantially brown and/or substantially free of enzymatic activity. Subsequently, the tobacco is exposed to gaseous emissions (e.g., smoke) from combusting sawdust/wood. This step may be conducted at least until the tobacco exhibits a moisture content of no more than about 16% and/or until the tobacco exhibits a gloss or shine on a surface of the tobacco.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: January 26, 2010
    Assignee: Rosswil LLC Ltd.
    Inventors: Lester E. Groves, Robert H. Krauch, Harold J. Doss, Charles L. Vaught, John E. Bunch