Patents by Inventor Mark James Leggett

Mark James Leggett 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: 10869479
    Abstract: This invention relates to a wipe for killing spores comprising an absorbent sheet holding an aqueous composition and a sealed package containing the absorbent sheet, wherein the aqueous composition comprises water, an antimicrobial agent and a peroxide. The invention also relates to a process for killing spores using the above-indicated wipe.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: December 22, 2020
    Assignee: American Sterilizer Company
    Inventors: Peter A. Burke, Mark James Leggett, Michael A. Centanni
  • Patent number: 10750749
    Abstract: This invention relates to a process and an aqueous composition for killing spores. The process comprises contacting the spores with the aqueous composition for a sufficient period of time to effect a desired reduction (e.g., at least a 4 log reduction) in the number of spores capable of reproduction, metabolism and/or growth. The aqueous composition comprises water, peracetic acid and hydrogen peroxide. The concentration of peracetic acid in the water may be in the range from about 0.001 to about 60% by weight, or from about 0.001 to about 0.5% by weight. The weight ratio of peracetic acid to hydrogen peroxide may be in the range from about 0.001 to about 0.5.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: August 25, 2020
    Assignee: American Sterilizer Company
    Inventors: Peter A. Burke, Mark James Leggett
  • Patent number: 10463754
    Abstract: This invention relates to a a process for decontaminating or sterilizing an article contaminated with spores. The process comprises contacting the spores with a liquid sterilant for a sufficient period of time to effect a desired reduction (e.g., at least a 4 log reduction) in the number of spores capable of returning to vegetative growth. The liquid sterilant may comprise water, an antimicrobial agent (e.g., peracetic acid) and a peroxide (e.g., hydrogen peroxide).
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: November 5, 2019
    Assignee: American Sterilizer Company
    Inventors: Peter A. Burke, Mark James Leggett, Michael A. Centanni
  • Patent number: 10455838
    Abstract: This invention relates to a wipe for killing spores comprising an absorbent sheet holding an aqueous composition and a sealed package containing the absorbent sheet, wherein the aqueous composition comprises water, an antimicrobial agent and a peroxide. The invention also relates to a process for killing spores using the above-indicated wipe.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: October 29, 2019
    Assignee: American Sterilizer Company
    Inventors: Peter A. Burke, Mark James Leggett, Michael A. Centanni
  • Publication number: 20170215427
    Abstract: This invention relates to a wipe for killing spores comprising an absorbent sheet holding an aqueous composition and a sealed package containing the absorbent sheet, wherein the aqueous composition comprises water, an antimicrobial agent and a peroxide. The invention also relates to a process for killing spores using the above-indicated wipe.
    Type: Application
    Filed: October 5, 2015
    Publication date: August 3, 2017
    Inventors: Peter A. Burke, Mark James Leggett, Michael A. Centanni
  • Publication number: 20170000117
    Abstract: This invention relates to a wipe for killing spores comprising an absorbent sheet holding an aqueous composition and a sealed package containing the absorbent sheet, wherein the aqueous composition comprises water, an antimicrobial agent and a peroxide. The invention also relates to a process for killing spores using the above-indicated wipe.
    Type: Application
    Filed: September 16, 2016
    Publication date: January 5, 2017
    Inventors: Peter A. Burke, Mark James Leggett, Michael A. Centanni
  • Publication number: 20160021888
    Abstract: This invention relates to a wipe for killing spores comprising an absorbent sheet holding an aqueous composition and a sealed package containing the absorbent sheet, wherein the aqueous composition comprises water, an antimicrobial agent and a peroxide. The invention also relates to a process for killing spores using the above-indicated wipe.
    Type: Application
    Filed: October 5, 2015
    Publication date: January 28, 2016
    Inventors: Peter A. Burke, Mark James Leggett, Michael A. Centanni
  • Publication number: 20150373986
    Abstract: This invention relates to an aqueous composition and a process for killing spores. The process may comprise contacting the spores with the aqueous composition for a sufficient period of time to effect a desired reduction (e.g., at least a 4 log reduction) in the number of spores capable of returning to vegetative growth. The aqueous composition may comprise water, an antimicrobial agent (e.g., peracetic acid) and a peroxide (e.g., hydrogen peroxide). The process may be a two-step process involving the use of a first aqueous composition, which may comprise water and the peroxide, and a second aqueous composition which may comprise water and the antimicrobial agent.
    Type: Application
    Filed: September 8, 2015
    Publication date: December 31, 2015
    Inventors: Peter A. Burke, Mark James Leggett, Michael A. Centanni
  • Publication number: 20150306266
    Abstract: This invention relates to a a process for decontaminating or sterilizing an article contaminated with spores. The process comprises contacting the spores with a liquid sterilant for a sufficient period of time to effect a desired reduction (e.g., at least a 4 log reduction) in the number of spores capable of returning to vegetative growth. The liquid sterilant may comprise water, an antimicrobial agent (e.g., peracetic acid) and a peroxide (e.g., hydrogen peroxide).
    Type: Application
    Filed: November 11, 2014
    Publication date: October 29, 2015
    Inventors: Peter A. Burke, Mark James Leggett, Michael A. Centanni
  • Publication number: 20150305342
    Abstract: This invention relates to a process and an aqueous composition for killing spores. The process comprises contacting the spores with the aqueous composition for a sufficient period of time to effect a desired reduction (e.g., at least a 4 log reduction) in the number of spores capable of reproduction, metabolism and/or growth. The aqueous composition comprises water, peracetic acid and hydrogen peroxide. The concentration of peracetic acid in the water may be in the range from about 0.001 to about 60% by weight, or from about 0.001 to about 0.5% by weight. The weight ratio of peracetic acid to hydrogen peroxide may be in the range from about 0.001 to about 0.5.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 29, 2015
    Applicant: American Sterilizer Company
    Inventors: Peter A. Burke, Mark James Leggett
  • Publication number: 20150305343
    Abstract: This invention relates to an aqueous composition and a process for killing spores. The process may comprise contacting the spores with the aqueous composition for a sufficient period of time to effect a desired reduction (e.g., at least a 4 log reduction) in the number of spores capable of returning to vegetative growth. The aqueous composition may comprise water, an antimicrobial agent (e.g., peracetic acid) and a peroxide (e.g., hydrogen peroxide). The process may be a two-step process involving the use of a first aqueous composition, which may comprise water and the peroxide, and a second aqueous composition which may comprise water and the antimicrobial agent.
    Type: Application
    Filed: October 28, 2014
    Publication date: October 29, 2015
    Inventors: Peter A. Burke, Mark James Leggett, Michael A. Centanni
  • Publication number: 20150305344
    Abstract: This invention relates to a decontamination or sterilization process wherein spores are killed, comprising: forming droplets of an aqueous composition comprising water and a peroxide, the aqueous composition having a concentration of peroxide in the range from about 0.01 to about 14% by weight; vaporizing the droplets to form a sporicidal vaporous mixture; and contacting the spores with the sporicidal vaporous mixture for a sufficient period of time to effect at least a 4 log reduction in the number of spores capable of returning to vegetative growth.
    Type: Application
    Filed: November 11, 2014
    Publication date: October 29, 2015
    Inventors: Peter A. Burke, Mark James Leggett, Michael A. Centanni