TREA

Ping Lin

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  • Bedford, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flapper check valve
    • Patent number 6,050,293
    • Issue date Apr 18, 2000
    • Watts Investment Company
    • Ping Lin
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Flapper check valve
    • Patent number 5,855,224
    • Issue date Jan 5, 1999
    • Watts Investment Company
    • Ping Lin
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Thermal expansion relief valve
    • Patent number 5,551,473
    • Issue date Sep 3, 1996
    • WattsRegulator Company
    • Ping Lin
    • E03 - WATER SUPPLY SEWERAGE