Patents by Inventor Stephen Charles Keiser

Stephen Charles Keiser 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).

  • Patent number: 11965150
    Abstract: A method is provided for vaporized hydrogen peroxide cleaning of a chamber. The method includes altering a temperature of air in the chamber from an initial temperature to a sterilization temperature over a first time period. The method also includes injecting vaporized hydrogen peroxide into air in the chamber to alter a relative humidity of hydrogen peroxide vapor in the chamber to a sterilization level over the first time period. The method also includes maintaining the temperature at the sterilization temperature and the relative humidity at the sterilization level over a second time period. The method also includes reducing the relative humidity from the sterilization level to a safe level over a third time period. In one embodiment, the method is provided for vaporized hydrogen peroxide cleaning of an interior chamber of an incubation container. In other embodiments, the incubation chamber featured in the method is provided.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: April 23, 2024
    Assignee: CARON PRODUCTS AND SERVICES, INC.
    Inventors: Milton Ford Baker, Jr., Dale C. Barnett, Robert W. Dotterer, David N. Figel, Stephen Charles Keiser
  • Publication number: 20230148051
    Abstract: A method is provided for vaporized hydrogen peroxide cleaning of a chamber. The method includes altering a temperature of air in the chamber from an initial temperature to a sterilization temperature over a first time period. The method also includes injecting vaporized hydrogen peroxide into air in the chamber to alter a relative humidity of hydrogen peroxide vapor in the chamber to a sterilization level over the first time period. The method also includes maintaining the temperature at the sterilization temperature and the relative humidity at the sterilization level over a second time period. The method also includes reducing the relative humidity from the sterilization level to a safe level over a third time period. In one embodiment, the method is provided for vaporized hydrogen peroxide cleaning of an interior chamber of an incubation container. In other embodiments, the incubation chamber featured in the method is provided.
    Type: Application
    Filed: October 10, 2022
    Publication date: May 11, 2023
    Inventors: Milton Ford Baker, JR., Dale C. Barnett, Robert W. Dotterer, David N. Figel, Stephen Charles Keiser
  • Patent number: 11525114
    Abstract: A method is provided for vaporized hydrogen peroxide cleaning of a chamber. The method includes altering a temperature of air in the chamber from an initial temperature to a sterilization temperature over a first time period. The method also includes injecting vaporized hydrogen peroxide into air in the chamber to alter a relative humidity of hydrogen peroxide vapor in the chamber to a sterilization level over the first time period. The method also includes maintaining the temperature at the sterilization temperature and the relative humidity at the sterilization level over a second time period. The method also includes reducing the relative humidity from the sterilization level to a safe level over a third time period. In one embodiment, the method is provided for vaporized hydrogen peroxide cleaning of an interior chamber of an incubation container. In other embodiments, the incubation chamber featured in the method is provided.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: December 13, 2022
    Assignee: Caron Products and Services, Inc.
    Inventors: Milton Ford Baker, Jr., Dale C Barnett, Robert W Dotterer, David N Figel, Stephen Charles Keiser
  • Publication number: 20200360552
    Abstract: A method is provided for reducing a duration of an inactivate step of a decontamination process of contents within a chamber of a container. The method includes at least one of directing air in contact with a catalyst to reduce a level of hydrogen peroxide (H2O2) in the air during the inactivate step and/or altering a temperature of air within the chamber during the inactivate step. A system is also provided for performing one or more steps of the method. The system includes the container defining the chamber; the catalyst; a component configured to direct air through the catalyst; and a processor configured to cause components of the system to perform one or more steps of the method.
    Type: Application
    Filed: June 12, 2020
    Publication date: November 19, 2020
    Inventors: Milton Ford Baker, JR., Steven F. Brooker, Robert W. Dotterer, David N. Figel, Brian K. Haught, Nathan Evan Huddleston, Stephen Charles Keiser
  • Publication number: 20200277561
    Abstract: A method is provided for vaporized hydrogen peroxide cleaning of a chamber. The method includes altering a temperature of air in the chamber from an initial temperature to a sterilization temperature over a first time period. The method also includes injecting vaporized hydrogen peroxide into air in the chamber to alter a relative humidity of hydrogen peroxide vapor in the chamber to a sterilization level over the first time period. The method also includes maintaining the temperature at the sterilization temperature and the relative humidity at the sterilization level over a second time period. The method also includes reducing the relative humidity from the sterilization level to a safe level over a third time period. In one embodiment, the method is provided for vaporized hydrogen peroxide cleaning of an interior chamber of an incubation container. In other embodiments, the incubation chamber featured in the method is provided.
    Type: Application
    Filed: May 19, 2020
    Publication date: September 3, 2020
    Inventors: Milton Ford Baker, JR., Dale C Barnett, Robert W Dotterer, David N Figel, Stephen Charles Keiser
  • Patent number: 10738271
    Abstract: A method is provided for vaporized hydrogen peroxide cleaning of a chamber. The method includes altering a temperature of air in the chamber from an initial temperature to a sterilization temperature over a first time period. The method also includes injecting vaporized hydrogen peroxide into air in the chamber to alter a relative humidity of hydrogen peroxide vapor in the chamber to a sterilization level over the first time period. The method also includes maintaining the temperature at the sterilization temperature and the relative humidity at the sterilization level over a second time period. The method also includes reducing the relative humidity from the sterilization level to a safe level over a third time period. In one embodiment, the method is provided for vaporized hydrogen peroxide cleaning of an interior chamber of an incubation container. In other embodiments, the incubation chamber featured in the method is provided.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: August 11, 2020
    Inventors: Milton Ford Baker, Jr., Dale C Barnett, Robert W Dotterer, David N Figel, Stephen Charles Keiser
  • Publication number: 20170175069
    Abstract: A method is provided for vaporized hydrogen peroxide cleaning of a chamber. The method includes altering a temperature of air in the chamber from an initial temperature to a sterilization temperature over a first time period. The method also includes injecting vaporized hydrogen peroxide into air in the chamber to alter a relative humidity of hydrogen peroxide vapor in the chamber to a sterilization level over the first time period. The method also includes maintaining the temperature at the sterilization temperature and the relative humidity at the sterilization level over a second time period. The method also includes reducing the relative humidity from the sterilization level to a safe level over a third time period. In one embodiment, the method is provided for vaporized hydrogen peroxide cleaning of an interior chamber of an incubation container. In other embodiments, the incubation chamber featured in the method is provided.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 22, 2017
    Inventors: Milton Ford Baker, JR., Dale C. Barnett, Robert W. Dotterer, David N. Figel, Stephen Charles Keiser