Patents by Inventor Doug Heselton

Doug Heselton 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).

  • Apparatus and method for using ozone as a disinfectant
    Patent number: 8354057
    Abstract: A method of sterilizing a closed environment is provided in which a disinfection apparatus is placed into the closed environment; it then generates ozone to a predetermined ozone concentration, following which the humidity of the closed environment is rapidly increased. A catalytic converter then reduces the ozone concentration to safe levels. When the ozone concentration is reduced to a predetermined safe level, the disinfection apparatus signals.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: January 15, 2013
    Inventors: Doug Heselton, Nigel Boast, Jim Hudson, Gordon Esplin
  • Apparatus And Method For Using Ozone As A Disinfectant
    Publication number: 20120020830
    Abstract: A method of sterilizing a closed environment is provided in which an ozone generator is placed into the closed environment; it then generates ozone to a predetermined ozone concentration and increases the humidity of the closed environment. The ozone concentration is maintained at the predetermined ozone concentration for a predetermined period of time, and after the period of time has expired, the ozone is depleted.
    Type: Application
    Filed: January 18, 2011
    Publication date: January 26, 2012
    Inventors: Nigel Boast, Doug Heselton, Jim Hudson, Sharma Manju
  • Apparatus and Method for Using Ozone as a Disinfectant
    Publication number: 20080213125
    Abstract: A method of sterilizing a closed environment is provided in which an ozone generator is placed into the closed environment; it then generates ozone to a predetermined ozone concentration and increases the humidity of the closed environment. The ozone concentration is maintained at the predetermined ozone concentration for a predetermined period of time, and after the period of time has expired, the ozone is depleted. When the ozone concentration is reduced to a predetermined safe level, the ozone generator signals.
    Type: Application
    Filed: March 18, 2005
    Publication date: September 4, 2008
    Applicant: Huawei Technologies Co. LTD.
    Inventors: Nigel Boast, Doug Heselton, Jim Hudson, Sharma Manju