TREA

David Caldwell

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  • Thonotosassa, FL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Metal refinement
    • Patent number 11,578,386
    • Issue date Feb 14, 2023
    • Enviro Metals, LLC
    • David W. Caldwell
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Metal refinement
    • Patent number 11,319,613
    • Issue date May 3, 2022
    • Enviro Metals, LLC
    • David Caldwell
    • B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

  • Information Patent Application

    METAL REFINEMENT
    • Publication number 20230175098
    • Publication date Jun 8, 2023
    • Enviro Metals, LLC
    • David W. Caldwell
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    METAL REFINEMENT
    • Publication number 20220213575
    • Publication date Jul 7, 2022
    • Enviro Metals, LLC
    • David W. Caldwell
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    METAL REFINEMENT
    • Publication number 20220056555
    • Publication date Feb 24, 2022
    • Enviro Metals, LLC
    • David Caldwell
    • B22 - CASTING POWDER METALLURGY