Patents by Inventor Donna K. Woods

Donna K. Woods 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).

  • Drug delivery article
    Patent number: 4917119
    Abstract: A drug delivery article provides a dose of a volatilized drug by heating a drug carrying substrate, but not burning any material. A heat source which includes a metal oxide (e.g., calcium oxide), an anhydrous metal sulfate (e.g., magnesium sulfate), an inorganic salt and a sugar, generates heat upon contact of water therewith. The heat produced by the heat source heats the drug in a heat exchange relationship therewith. The drug volatilizes and is drawn into the mouth of the user of the article. Typical heat sources heat the drug to a temperature within 70.degree. C. to 200.degree. C. for 4 to 8 minutes.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: April 17, 1990
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Dennis L. Potter, Mark L. Raker, Henry T. Ridings, Andrew J. Sensabaugh, Jr., Amos E. Westmoreland, Donna K. Woods, Chandra K. Banerjee
  • Flavor delivery article
    Patent number: 4913168
    Abstract: A flavor delivery article provides volatilized flavor by heating a flavor carrying substrate, but not burning any material. A heat source which includes a metal oxide (e.g., calcium oxide), an anhydrous metal sulfate (e.g., magnesium sulfate), an inorganic salt and a sugar, generates heat upon contact of water therewith. The heat produced by the heat source heats flavor in a heat exchange relationship therewith. Flavors volatilize and are drawn into the mouth of the user of the article. Typical heat sources heat the flavor to a temperature within 70.degree. C. to 200.degree. C. for 4 to 8 minutes.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: April 3, 1990
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Dennis L. Potter, Mark L. Raker, Henry T. Ridings, Andrew J. Sensabaugh, Jr., Amos E. Westmoreland, Donna K. Woods, Chandra K. Banerjee
  • Microporous materials in cigarette filter construction
    Patent number: 4729391
    Abstract: Flavor-carrying microporous polymer material is incorporated with a cigarette filter to release flavor into the smoke-stream during smoking of the cigarette.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: March 8, 1988
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Donna K. Woods, Donald L. Roberts
  • Smoking product
    Patent number: 4643205
    Abstract: A smoking product having an improved flavor is prepared by applying a naturally occurring terpenoid glycoside sweetener to the portion of the product that is intended to be contacted by the smoker's lips.
    Type: Grant
    Filed: February 2, 1984
    Date of Patent: February 17, 1987
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Jerry W. Redding, Donald L. Roberts, Donna K. Woods