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James C. Harmon
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Salt Lake City, UT, US
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Patents Grants
last 30 patents
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...
Information
Patent Grant
Pump impeller and chopper plate for a centrifugal pump
Patent number
7,455,251
Issue date
Nov 25, 2008
Envirotech Pumpsystems, Inc.
Brandon R. Doering
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Pump impeller and chopper plate for a centrifugal pump
Patent number
7,234,657
Issue date
Jun 26, 2007
Envirotech Pumpsystems, Inc.
Brandon R. Doering
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Apparatus for axial adjustment of chopper pump clearances
Patent number
7,168,915
Issue date
Jan 30, 2007
Envirotech Pumpsystems, Inc.
Brandon R. Doering
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Impeller and cutting elements for centrifugal chopper pumps
Patent number
7,118,327
Issue date
Oct 10, 2006
Envirotech Pumpsystems, Inc.
Brandon R. Doering
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Pump impeller and chopper plate for a centrifugal pump
Patent number
7,080,797
Issue date
Jul 25, 2006
Envirotech Pumpsystems, Inc.
Brandon R. Doering
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Patents Applications
last 30 patents
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
Pump impeller and chopper plate for a centrifugal pump
Publication number
20070090211
Publication date
Apr 26, 2007
Brandon R. Doering
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...
Information
Patent Application
Pump impeller and chopper plate for a centrifugal pump
Publication number
20060255194
Publication date
Nov 16, 2006
Brandon R. Doering
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Impeller and cutting elements for centrifugal chopper pumps
Publication number
20050053461
Publication date
Mar 10, 2005
Brandon R. Doering
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Apparatus for axial adjustment of chopper pump clearances
Publication number
20050047908
Publication date
Mar 3, 2005
Brandon R. Doering
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Pump impeller and chopper plate for a centrifugal pump
Publication number
20050045757
Publication date
Mar 3, 2005
Brandon R. Doering
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...