TREA

John P. D'Angelo

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  • Medford, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Noise reduction tubes
    • Patent number 7,533,760
    • Issue date May 19, 2009
    • John P. D'Angelo
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Noise reduction tubes
    • Patent number 7,497,300
    • Issue date Mar 3, 2009
    • John P. D'Angelo
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...

Patents Applicationslast 30 patents

  • Information Patent Application

    Noise reduction tubes
    • Publication number 20050205351
    • Publication date Sep 22, 2005
    • John P. D'Angelo
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES