TREA

John A. Sawyer

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  • Trout Run, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Compressor and a method for compressing fluid
    • Patent number 7,153,112
    • Issue date Dec 26, 2006
    • Dresser-Rand Company
    • Philip A. Zarnoch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Capacity and volume ratio control valve assembly
    • Patent number 5,435,704
    • Issue date Jul 25, 1995
    • Dresser-Rand Company
    • John A. Sawyer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    High-pressure-fluid machine, a seal
    • Patent number RE34367
    • Issue date Sep 7, 1993
    • Dresser-Rand Company
    • Bernard F. Miller
    • 092 - Expansible chamber devices
  • Information Patent Grant

    Plural-stage gas compressor
    • Patent number 5,078,580
    • Issue date Jan 7, 1992
    • Dresser-Rand Company
    • Bernard F. Miller
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Piston and connecting pin assembly, a crosshead and connecting pin...
    • Patent number 4,964,332
    • Issue date Oct 23, 1990
    • Dresser-Rand Company
    • John A. Sawyer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gas compressor
    • Patent number 4,957,416
    • Issue date Sep 18, 1990
    • Dresser-Rand Company
    • Bernard F. Miller
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    High-pressure-fluid machine, a seal
    • Patent number 4,890,542
    • Issue date Jan 2, 1990
    • Ingersoll-Rand Company
    • Bernard F. Miller
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    Compressor and a method for compressing fluid
    • Publication number 20050123429
    • Publication date Jun 9, 2005
    • Dresser-Rand Company
    • Philip A. Zarnoch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...