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John VanderHorst
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Littleton, CO, US
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Patents Grants
last 30 patents
Information
Patent Grant
Recreational vehicle wastewater tank measurement system and method
Patent number
9,797,761
Issue date
Oct 24, 2017
John Vander Horst
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Rotary valve multi-tank indirect liquid level measurement system an...
Patent number
9,534,945
Issue date
Jan 3, 2017
John Vander Horst
G01 - MEASURING TESTING
Information
Patent Grant
Recreational vehicle holding tank sensor probe
Patent number
8,410,948
Issue date
Apr 2, 2013
John Vander Horst
G01 - MEASURING TESTING
Information
Patent Grant
Indirect liquid level measurement
Patent number
7,389,688
Issue date
Jun 24, 2008
John Vander Horst
G01 - MEASURING TESTING
Information
Patent Grant
Detachable extension mirror
Patent number
7,150,538
Issue date
Dec 19, 2006
John Vander Horst
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Attachable mirror for transport applications
Patent number
D528952
Issue date
Sep 26, 2006
John Vander Horst
D12 - Transportation
Information
Patent Grant
Constant delivery inertia pump
Patent number
4,370,101
Issue date
Jan 25, 1983
John Vander Horst
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Hub seals for thrust-assisted centrifugal pump
Patent number
4,278,396
Issue date
Jul 14, 1981
John Vander Horst
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Multi-function air treatment unit
Patent number
3,945,465
Issue date
Mar 23, 1976
Wilkerson Corporation
John Vander Horst
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
Recreational vehicle wastewater tank measurement system and method
Publication number
20170059385
Publication date
Mar 2, 2017
John Vander Horst
G01 - MEASURING TESTING
Information
Patent Application
Rotary valve multi-tank indirect liquid level measurement system an...
Publication number
20150198475
Publication date
Jul 16, 2015
John Vander Horst
G01 - MEASURING TESTING
Information
Patent Application
Detachable extension mirror
Publication number
20050117238
Publication date
Jun 2, 2005
John Vander Horst
B60 - VEHICLES IN GENERAL
Information
Patent Application
Detachable remotely-adjustable extension mirror system
Publication number
20040150900
Publication date
Aug 5, 2004
John VanderHorst
B60 - VEHICLES IN GENERAL