Patents by Inventor Warren P. Dickinson

Warren P. Dickinson 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).

  • Microwave spectrometer
    Patent number: 7057398
    Abstract: An improved microwave spectrometer for measuring the concentration of ethylene oxide gas and the concentration of water vapor in one or more gas samples taken from an ethylene oxide sterilization chamber.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: June 6, 2006
    Inventors: Zhangwu Zhu, Warren P. Dickinson
  • Microwave spectrometer
    Publication number: 20040155664
    Abstract: An improved microwave spectrometer for measuring the concentration of ethylene oxide gas and the concentration of water vapor in one or more gas samples taken from an ethylene oxide sterilization chamber.
    Type: Application
    Filed: February 11, 2003
    Publication date: August 12, 2004
    Inventors: Zhangwu Zhu, Warren P. Dickinson
  • Safety system
    Patent number: 6387332
    Abstract: A safety system for a gas process or facility for measuring the concentration of a specified gas in an area or chamber and determining whether it is safe to allow access to such area or chamber. In particular, the safety system is adapted for use in a gas sterilization facility having one or more sterilization chambers, wherein the safety system measures the concentration of the sterilizing gas and unlocks the door of the sterilization chamber if the level of the sterilizing gas in the sterilization chamber is below a predetermined limit. The safety system further limits access to the sterilization chamber after a predetermined period of time if the door of the sterilization chamber is not opened due to the possible continued desorption of the sterilizing gas from the articles into the sterilization chamber.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: May 14, 2002
    Assignee: Griffith Micro Science, Inc.
    Inventors: Warren P. Dickinson, Franklin S. Lange, James S. Legg