Patents by Inventor Steve D. Sitkiewitz

Steve D. Sitkiewitz 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).

  • Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water
    Patent number: 12103874
    Abstract: In a system for decomposing organic compounds in water for use in semiconductor manufacturing, a chemical reactor vessel having a fluid inlet and a fluid outlet, a persulfate anion addition system upstream of the reactor vessel, and a light emitting device contained within the reactor vessel. The light emitting device provides light capable of decomposing persulfate anions.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: October 1, 2024
    Assignee: Evoqua Water Technologies LLC
    Inventors: Steve D. Sitkiewitz, Gary M. Carmignani, Lee W. Frederick
  • ULTRAVIOLET LIGHT ACTIVATED OXIDATION PROCESS FOR THE REDUCTION OF ORGANIC CARBON IN SEMICONDUCTOR PROCESS WATER
    Publication number: 20210387878
    Abstract: In a system for decomposing organic compounds in water for use in semiconductor manufacturing, a chemical reactor vessel having a fluid inlet and a fluid outlet, a persulfate anion addition system upstream of the reactor vessel, and a light emitting device contained within the reactor vessel. The light emitting device provides light capable of decomposing persulfate anions.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 16, 2021
    Applicant: Evoqua Water Technologies LLC
    Inventors: Steve D. Sitkiewitz, Gary M. Carmignani, Lee W. Frederick
  • ULTRAVIOLET LIGHT ACTIVATED OXIDATION PROCESS FOR THE REDUCTION OF ORGANIC CARBON IN SEMICONDUCTOR PROCESS WATER
    Publication number: 20200148563
    Abstract: In a system for decomposing organic compounds in water for use in semiconductor manufacturing, a chemical reactor vessel having a fluid inlet and a fluid outlet, a persulfate anion addition system upstream of the reactor vessel, and a light emitting device contained within the reactor vessel. The light emitting device provides light capable of decomposing persulfate anions.
    Type: Application
    Filed: January 9, 2020
    Publication date: May 14, 2020
    Applicant: Evoqua Water Technologies LLC
    Inventors: Steve D. Sitkiewitz, Gary M. Carmignani, Lee W. Frederick
  • Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water
    Patent number: 10550020
    Abstract: In a system for decomposing organic compounds in water for use in semiconductor manufacturing, a chemical reactor vessel having a fluid inlet and a fluid outlet, a persulfate anion addition system upstream of the reactor vessel, and a light emitting device contained within the reactor vessel. The light emitting device provides light capable of decomposing persulfate anions.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: February 4, 2020
    Assignee: Evoqua Water Technologies LLC
    Inventors: Steve D. Sitkiewitz, Gary M. Carmignani, Lee W. Frederick
  • ULTRAVIOLET LIGHT ACTIVATED OXIDATION PROCESS FOR THE REDUCTION OF ORGANIC CARBON IN SEMICONDUCTOR PROCESS WATER
    Publication number: 20200002198
    Abstract: In a system for decomposing organic compounds in water for use in semiconductor manufacturing, a chemical reactor vessel having a fluid inlet and a fluid outlet, a persulfate anion addition system upstream of the reactor vessel, and a light emitting device contained within the reactor vessel. The light emitting device provides light capable of decomposing persulfate anions.
    Type: Application
    Filed: July 8, 2019
    Publication date: January 2, 2020
    Applicant: Evoqua Water Technologies LLC
    Inventors: Steve D. Sitkiewitz, Gary M. Carmignani, Lee W. Frederick
  • Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water
    Patent number: 10343939
    Abstract: In a system for decomposing organic compounds in water for use in semiconductor manufacturing, a chemical reactor vessel having a fluid inlet and a fluid outlet, a persulfate anion addition system upstream of the reactor vessel, and a light emitting device contained within the reactor vessel. The light emitting device provides light capable of decomposing persulfate anions.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: July 9, 2019
    Assignee: Evoqua Water Technologies LLC
    Inventors: Steve D. Sitkiewitz, Gary M. Carmignani, Lee W. Frederick
  • ULTRAVIOLET LIGHT ACTIVATED OXIDATION PROCESS FOR THE REDUCTION OF ORGANIC CARBON IN SEMICONDUCTOR PROCESS WATER
    Publication number: 20140144821
    Abstract: In a system for decomposing organic compounds in water for use in semiconductor manufacturing, a chemical reactor vessel having a fluid inlet and a fluid outlet, a persulfate anion addition system upstream of the reactor vessel, and a light emitting device contained within the reactor vessel. The light emitting device provides light capable of decomposing persulfate anions.
    Type: Application
    Filed: January 31, 2014
    Publication date: May 29, 2014
    Inventors: Steve D. Sitkiewitz, Gary M. Carmignani, Lee W. Frederick