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Balanced safety relief valve
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Patent number 7,513,270
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Issue date Apr 7, 2009
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Flow Safe, Inc.
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Kevin P. Martin
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Surge relief valve
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Patent number 7,302,961
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Issue date Dec 4, 2007
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Flow Safe, Inc.
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Jeffrey R. Martin
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Non-flowing pilot valve
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Patent number 6,386,227
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Issue date May 14, 2002
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Flow Safe, Inc.
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Walter W. Powell
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G05 - CONTROLLING REGULATING
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-
-
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Pilot operated safety relief valve
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Patent number 5,842,501
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Issue date Dec 1, 1998
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Flow Safe, Inc.
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Walter W. Powell
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Relief valve
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Patent number 5,738,333
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Issue date Apr 14, 1998
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Flow Safe, Inc.
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Michael L. Cognevich
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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-
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78919970 - STABLE VORTEX
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Serial number 78919970
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Registration number 3329361
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Filing date Jun 29, 2006
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FLOW SAFE INC.
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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78704426 - STABLE VORTEX
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Serial number 78704426
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Filing date Aug 31, 2005
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Flow Safe
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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76624973 - FLOW SAFE
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Serial number 76624973
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Registration number 3067246
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Filing date Dec 16, 2004
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FLOW-SAFE, INC.
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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78290934 - VORTEX II
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Serial number 78290934
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Registration number 3030157
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Filing date Aug 22, 2003
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FLOW SAFE, INC.
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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75163214 - FLOW SAFE
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Serial number 75163214
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Registration number 2136789
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Filing date Aug 30, 1996
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FLOW-SAFE, INC.
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6 - Common metals and their alloys
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74442918 - VFV
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Serial number 74442918
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Registration number 1922853
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Filing date Oct 1, 1993
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FLOW SAFE INC.
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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74442848 - VARIABLE FACE VELOCITY
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Serial number 74442848
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Filing date Oct 1, 1993
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FLOW SAFE INC.
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments