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James Northrup
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Draper, UT, US
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Patents Grants
last 30 patents
Information
Patent Grant
Two-piece bearing housing for a centrifugal pump
Patent number
7,988,408
Issue date
Aug 2, 2011
Envirotech Pumpsystems, Inc.
James Northrup
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Check valve for a self-priming pump
Patent number
7,784,489
Issue date
Aug 31, 2010
Envirotech Pumpsystems, Inc.
Greg Paulin
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Patents Applications
last 30 patents
Information
Patent Application
Apparatus For Non-Clogging Pumps
Publication number
20120014783
Publication date
Jan 19, 2012
ENVIROTECH PUMPSYSTEMS, INC.
James G. Shaw
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Two-Piece Bearing Housing For A Centrifugal Pump
Publication number
20110280714
Publication date
Nov 17, 2011
ENVIROTECH PUMPSYSTEMS, INC.
James Northrup
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Check Valve For A Self-Priming Pump
Publication number
20100313972
Publication date
Dec 16, 2010
ENVIROTECH PUMPSYSTEMS, INC.
Greg Paulin
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Wear plate for a centrifugal pump
Publication number
20090232639
Publication date
Sep 17, 2009
Kim M. Arnold
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Two-piece bearing housing for a centrifugal pump
Publication number
20090016657
Publication date
Jan 15, 2009
James Northrup
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Fill port for a self-priming centrifugal pump, with safety device
Publication number
20070071619
Publication date
Mar 29, 2007
EnviroTech Pumpsystems, Inc.
James G. Shaw
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Check valve for a self-priming pump
Publication number
20070036665
Publication date
Feb 15, 2007
Greg Paulin
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...