John Howard Hall

Inventor

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Work History

Patent OwnerApplications FiledYear
VIKING PUMP, INC.
2
2013

Inventor Addresses

AddressDuration
Cedar Falls, IA, USJul 17, 14 - Apr 09, 20

Technology Profile

Technology Matters
F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 1
F04C: ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 3
F04D: NON-POSITIVE-DISPLACEMENT PUMPS 1

Patents / Publication

Patents / Publication #Year of Publication / IssuedTitleCitations
2020/0109,7102020IDLER GEAR FOR POSITIVE DISPLACEMENT GEAR PUMP0
105140342019Idler gear for positive displacement gear pump0
2018/0328,3602018IDLER GEAR FOR POSITIVE DISPLACEMENT GEAR PUMP0
2015/0139,7922015Internal Gear Pump1
2014/0199,1622014Positive Displacement Pump Including Detectable Composite Non-Metallic Components1

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