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Christopher John A. Purcell

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  • Dartmouth, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multi-mode pipe projector
    • Patent number 6,584,039
    • Issue date Jun 24, 2003
    • Her Majesty the Queen in right of Canada, as represented by the Minister of N...
    • Christopher John A. Purcell
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Flared wave-guide projector
    • Patent number 6,567,342
    • Issue date May 20, 2003
    • Her Majesty the Queen in right of Canada, as represented by the Minister of N...
    • Christopher John A. Purcell
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Flextensional resonant pipe projector
    • Patent number 6,567,343
    • Issue date May 20, 2003
    • Her Majesty the Queen in right of Canada, as represented by the Minister of N...
    • Christopher John A. Purcell
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Folded shell projector (FSP)
    • Patent number 5,805,529
    • Issue date Sep 8, 1998
    • Her Majesty the Queen in right of Canada, as represented by the Minister of N...
    • Christopher John A. Purcell
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents