Patents by Inventor Archie G. Woodworth

Archie G. Woodworth 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).

  • Determining quantitative degree of ethylene oxide exposure in sterilization processes
    Patent number: 4423005
    Abstract: A method of quantitatively determining the amount of exposure of an object to ethylene oxide gas. A pre-weighed ethylene oxide-permeable container, which encloses a predetermined amount of catalyst for the reaction of the ethylene oxide gas to form a liquid, is placed adjacent to the object. The object and container are then exposed to ethylene oxide gas for controlled time and at a known humidity and temperature. The container is then reweighed. The weight gain of the container is a quantitative indication of the amount of exposure to ethylene oxide gas. The test system may be calibrated against its effect in known concentrations of ethylene oxide gas, so that the precise amount of exposure to ethylene oxide gas can be determined.
    Type: Grant
    Filed: April 9, 1982
    Date of Patent: December 27, 1983
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: J. Barry Murtaugh, Dean G. Laurin, John E. Kling, Archie G. Woodworth
  • Determining quantitative degree of ethylene oxide exposure in sterilization processes
    Patent number: 4348209
    Abstract: A method of quantitatively determining the amount of exposure of an object to ethylene oxide gas. A preweighed ethylene oxide-permeable container, which encloses a predetermined amount of catalyst for the reaction of the ethylene oxide gas to form a liquid, is placed adjacent to the object. The object and container are then exposed to ethylene oxide gas for controlled time and at a known humidity and temperature. The container is then reweighed. The weight gain of the container is a quantitative indication of the amount of exposure to ethylene oxide gas. The test system may be calibrated against its effect in known concentrations of ethylene oxide gas, so that the precise amount of exposure to ethylene oxide gas can be determined.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: September 7, 1982
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: J. Barry Murtaugh, Dean G. Laurin, John E. Kling, Archie G. Woodworth