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David Muhs
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Minnetonka, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Self priming pump assembly with a direct drive vacuum pump
Patent number
8,998,586
Issue date
Apr 7, 2015
David Muhs
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Pump system with vacuum source
Patent number
8,662,862
Issue date
Mar 4, 2014
Water Management Systems, LLC
David Muhs
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Vacuum source and float valve for a self-priming pump
Patent number
8,246,316
Issue date
Aug 21, 2012
David Muhs
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Vacuum pump with wear adjustment
Patent number
7,878,768
Issue date
Feb 1, 2011
David Muhs
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Pump System with a vacuum source coupled to a separator
Patent number
7,794,211
Issue date
Sep 14, 2010
Water Management Systems
David Muhs
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Trailer and fuel tank assembly
Patent number
7,311,335
Issue date
Dec 25, 2007
Water Management Systems
David Muhs
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Pump system with vacuum source
Patent number
7,011,505
Issue date
Mar 14, 2006
Water Management Systems
David Muhs
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Pump system with vacuum source
Patent number
6,692,234
Issue date
Feb 17, 2004
Water Management Systems
David Muhs
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Pump system with vacuum source
Patent number
6,585,492
Issue date
Jul 1, 2003
David Muhs
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Trailer and fuel tank assembly
Patent number
6,405,748
Issue date
Jun 18, 2002
David Muhs
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Pump impeller and related components
Patent number
6,390,768
Issue date
May 21, 2002
David Muhs
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Pump system with vacuum source
Patent number
6,315,524
Issue date
Nov 13, 2001
David Muhs
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Patents Applications
last 30 patents
Information
Patent Application
PUMP SYSTEM WITH VACUUM SOURCE
Publication number
20120312392
Publication date
Dec 13, 2012
WATER MANAGEMENT SYSTEMS
David Muhs
B60 - VEHICLES IN GENERAL
Information
Patent Application
SELF PRIMING PUMP ASSEMBLY WITH A DIRECT DRIVE VACUUM PUMP
Publication number
20110044827
Publication date
Feb 24, 2011
David Muhs
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
PUMP SYSTEM WITH VACUUM SOURCE
Publication number
20110008183
Publication date
Jan 13, 2011
David Muhs
B60 - VEHICLES IN GENERAL
Information
Patent Application
VACUUM PUMP WITH WEAR ADJUSTMENT
Publication number
20080175722
Publication date
Jul 24, 2008
David Muhs
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
VACUUM PUMP WITH WEAR ADJUSTMENT
Publication number
20080175723
Publication date
Jul 24, 2008
WATER MANAGEMENT SYSTEMS
David Muhs
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
PUMP SYSTEM WITH VACUUM SOURCE
Publication number
20060110261
Publication date
May 25, 2006
David Muhs
B60 - VEHICLES IN GENERAL
Information
Patent Application
Pump system with vacuum source
Publication number
20040120828
Publication date
Jun 24, 2004
David Muhs
B60 - VEHICLES IN GENERAL
Information
Patent Application
Trailer and fuel tank assembly
Publication number
20020125680
Publication date
Sep 12, 2002
David Muhs
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Pump system with vacuum source
Publication number
20020098090
Publication date
Jul 25, 2002
David Muhs
B60 - VEHICLES IN GENERAL
Information
Patent Application
Pump system with vacuum source
Publication number
20010041140
Publication date
Nov 15, 2001
David Muhs
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...