TREA

Watts Investment Company

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Organization

  • North Andover, MA, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Backflow prevention assembly
    • Patent number 6,293,013
    • Issue date Sep 25, 2001
    • Watts Investment Company
    • Lester Engelmann
    • E03 - WATER SUPPLY SEWERAGE
  • 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

Patents Applicationslast 30 patents

Trademarklast 30 trademarks