Inventor
FEHR DAVID L
US12 patents
Patents
12 patentsUS11174854B2Nov 16, 2021
Electrically operated displacement pump control system and method
GRACO MINNESOTA INC14 citations93
US11655810B2May 23, 2023
Electrically operated displacement pump control system and method
GRACO MINNESOTA INC8 citations85
US10195622B2Feb 5, 2019
Spray system pressure differential monitoring
GRACO MINNESOTA INC7 citations82
US9901945B2Feb 27, 2018
Spray system pump wash sequence
GRACO MINNESOTA INC16 citations82
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
US12092090B2Sep 17, 2024
Electrically operated displacement pump control system and method
GRACO MINNESOTA INC0 citations62
US11045830B2Jun 29, 2021
Spray system pump wash sequence
GRACO MINNESOTA INC0 citations60
US10300504B2May 28, 2019
Spray system pump wash sequence
GRACO MINNESOTA INC1 citations60
US11148152B2Oct 19, 2021
Pump changeover algorithm for spray system
GRACO MINNESOTA INC0 citations56
US10195621B2Feb 5, 2019
Pump changeover algorithm for spray system
GRACO MINNESOTA INC1 citations56
US10688509B2Jun 23, 2020
Spray system pressure differential monitoring
GRACO MINNESOTA INC0 citations50