TREA

Patrick Frazer

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  • Ashland, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Water control system
    • Patent number 11,807,550
    • Issue date Nov 7, 2023
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Valve control system
    • Patent number 11,655,904
    • Issue date May 23, 2023
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Water delivery control system
    • Patent number 11,591,240
    • Issue date Feb 28, 2023
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Water delivery control system
    • Patent number 11,548,795
    • Issue date Jan 10, 2023
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pison valve with annular passages
    • Patent number 11,542,178
    • Issue date Jan 3, 2023
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Pump controller apparatus
    • Patent number 11,209,839
    • Issue date Dec 28, 2021
    • CHANDLER SYSTEMS, INC.
    • William D Chandler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston valve with annular passages
    • Patent number 11,208,335
    • Issue date Dec 28, 2021
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston valve with annular passages
    • Patent number 11,203,532
    • Issue date Dec 21, 2021
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Pressure switch
    • Patent number D924177
    • Issue date Jul 6, 2021
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Valve control apparatus
    • Patent number 10,865,122
    • Issue date Dec 15, 2020
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Piston valve with annular passages
    • Patent number 10,865,124
    • Issue date Dec 15, 2020
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Valve control apparatus
    • Patent number 10,829,388
    • Issue date Nov 10, 2020
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Piston valve with annular passages
    • Patent number 10,822,251
    • Issue date Nov 3, 2020
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Liquid treatment control system
    • Patent number 10,590,008
    • Issue date Mar 17, 2020
    • CHANDLER SYSTEMS, INC.
    • William D. Chandler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...