Inventor
KOEHN BRIAN W
US29 patents
Patents
29 patentsUSD822719SJul 10, 2018
Diaphragm pump
GRACO MINNESOTA INC26 citations94
US11174854B2Nov 16, 2021
Electrically operated displacement pump control system and method
GRACO MINNESOTA INC14 citations93
US10161393B2Dec 25, 2018
Mechanical drive system for a pulseless positive displacement pump
GRACO MINNESOTA INC11 citations92
US9638185B2May 2, 2017
Pulseless positive displacement pump and method of pulselessly displacing fluid
GRACO MINNESOTA INC16 citations92
USD1014562SFeb 13, 2024
Displacement pump
GRACO MINNESOTA INC9 citations85
USD1013732SFeb 6, 2024
Displacement pump
GRACO MINNESOTA INC6 citations85
US11655810B2May 23, 2023
Electrically operated displacement pump control system and method
GRACO MINNESOTA INC8 citations85
USD822720SJul 10, 2018
Diaphragm pump
GRACO MINNESOTA INC10 citations84
USD822067SJul 3, 2018
Diaphragm pump
GRACO MINNESOTA INC15 citations84
US9784265B2Oct 10, 2017
Electric drive system for a pulseless positive displacement pump
GRACO MINNESOTA INC7 citations84
US9777722B2Oct 3, 2017
Pulseless positive displacement pump and method of pulselessly displacing fluid
GRACO MINNESOTA INC4 citations84
US9777721B2Oct 3, 2017
Hydraulic drive system for a pulseless positive displacement pump
GRACO MINNESOTA INC7 citations84
USD782541SMar 28, 2017
Diaphragm pump
GRACO MINNESOTA INC14 citations84
USD780227SFeb 28, 2017
Diaphragm pump
GRACO MINNESOTA INC13 citations82
USD771714SNov 15, 2016
Diaphragm pump
GRACO MINNESOTA INC11 citations82
US11867165B2Jan 9, 2024
Drive system for a positive displacement pump
GRACO MINNESOTA INC2 citations73
US10072650B2Sep 11, 2018
Method of pulselessly displacing fluid
GRACO MINNESOTA INC2 citations73
US11434892B2Sep 6, 2022
Electrically operated displacement pump assembly
GRACO MINNESOTA INC1 citations72
US12553425B2Feb 17, 2026
Cooling for an electrically operated displacement pump
GRACO MINNESOTA INC0 citations62
US12253071B2Mar 18, 2025
Drive system for a positive displacement pump
GRACO MINNESOTA INC0 citations62
US12092090B2Sep 17, 2024
Electrically operated displacement pump control system and method
GRACO MINNESOTA INC0 citations62
US11905939B2Feb 20, 2024
Mechanically driven modular diaphragm pump
GRACO MINNESOTA INC0 citations62
USD1014561SFeb 13, 2024
Displacement pump control box with center section
GRACO MINNESOTA INC1 citations62
USD1006830SDec 5, 2023
Control box for a displacement pump
GRACO MINNESOTA INC0 citations62
US11639713B2May 2, 2023
Mechanically driven modular diaphragm pump
GRACO MINNESOTA INC0 citations62
US11002261B2May 11, 2021
Mechanically driven modular diaphragm pump
GRACO MINNESOTA INC0 citations57
US12392333B2Aug 19, 2025
Diaphragm pump drive for an electric pump
GRACO MINNESOTA INC0 citations52
US11022106B2Jun 1, 2021
High-pressure positive displacement plunger pump
GRACO MINNESOTA INC0 citations52
US11873802B2Jan 16, 2024
Pump having multi-stage gas compression
GRACO MINNESOTA INC0 citations51