Patents by Inventor Ann R. Treadway

Ann R. Treadway 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).

  • Cigarette quality assurance method
    Patent number: 5092349
    Abstract: The quality of finished cigarettes is assured by incorporating an individual, predetermined lubricant at predetermined locations in the cigarette manufacturing process. When a cigarette spotted or stained by a lubricant deposit is obtained, the lubricant deposit is analyzed using high performance liquid chromatography techniques to identify the flavoring agent. As such, the cigarette manufacturer can identify the source of the lubricant which is staining, and hence lowering the quality of the appearance of its cigarettes.
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: March 3, 1992
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Donald H. Smith, Susan V. Parsons, Ann R. Treadway