TREA

Charles G. Purnell

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  • West Midlands, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making a sintered article
    • Patent number 5,784,681
    • Issue date Jul 21, 1998
    • Brico Engineering Limited
    • Charles Grant Purnell
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Sintered articles
    • Patent number 5,654,106
    • Issue date Aug 5, 1997
    • Brico Engineering Limited
    • Charles Grant Purnell
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Aluminium alloys
    • Patent number 5,613,184
    • Issue date Mar 18, 1997
    • The Aluminium Powder Company Limited
    • Charles G. Purnell
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Method of sintering machinable ferrous-based materials
    • Patent number 5,534,220
    • Issue date Jul 9, 1996
    • Brico Engineering Limited
    • Charles G. Purnell
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Sintered material
    • Patent number 5,312,475
    • Issue date May 17, 1994
    • Brico Engineering Ltd.
    • Charles G. Purnell
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Sintered materials and method thereof
    • Patent number 5,188,659
    • Issue date Feb 23, 1993
    • Brico Engineering Limited
    • Charles G. Purnell
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Valve guide
    • Patent number 5,062,908
    • Issue date Nov 5, 1991
    • Brico Engineering Limited
    • Charles G. Purnell
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Valve guide
    • Patent number 5,041,168
    • Issue date Aug 20, 1991
    • Brico Engineering Company Limited
    • Charles G. Purnell
    • B22 - CASTING POWDER METALLURGY