TREA

Recurrent Solutions Limited Partnership

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  • Cambridge, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Diaphragm-type pilot valve having a self-cleaning control orifice
    • Patent number 5,456,279
    • Issue date Oct 10, 1995
    • Recurrent Solutions Limited Partnership
    • Natan E. Parsons
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Elongated-pattern sonic transducer
    • Patent number 5,251,188
    • Issue date Oct 5, 1993
    • Recurrent Solutions Limited Partnership
    • Natan E. Parsons
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Flush system
    • Patent number 5,125,621
    • Issue date Jun 30, 1992
    • Recurrent Solutions Limited Partnership
    • Natan E. Parsons
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Sonic distance-measuring device
    • Patent number 4,953,141
    • Issue date Aug 28, 1990
    • Recurrent Solutions Limited Partnership
    • Joel S. Novak
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method and apparatus for flow control
    • Patent number 4,921,211
    • Issue date May 1, 1990
    • Recurrent Solutions Limited Partnership
    • Joel S. Novak
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Automatic flow-control device
    • Patent number 4,839,039
    • Issue date Jun 13, 1989
    • Recurrent Solutions Limited Partnership
    • Natan E. Parsons
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Ultrasonic motion detection system
    • Patent number 4,604,735
    • Issue date Aug 5, 1986
    • Recurrent Solutions, Inc.
    • Natan E. Parsons
    • E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

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