P

Inventor

CAMPBELL STEVEN K

US26 patents

Patents

26 patents
US9320997B2Apr 26, 2016

Air filter cartridges; air cleaner assemblies; housings; features; components; and, methods

DONALDSON CO INC98 citations98
US10046260B2Aug 14, 2018

Air filter cartridges; air cleaner assemblies; housings; features; components; and, methods

DONALDSON CO INC43 citations97
US11298643B2Apr 12, 2022

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

DONALDSON CO INC20 citations94
US10610816B2Apr 7, 2020

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

DONALDSON CO INC25 citations94
US11198082B2Dec 14, 2021

Filter cartridges; air cleaner assemblies; housings; features; components; and methods

DONALDSON CO INC14 citations93
US11752460B2Sep 12, 2023

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

DONALDSON CO INC9 citations86
US11801466B2Oct 31, 2023

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

DONALDSON CO INC5 citations85
US12186694B2Jan 7, 2025

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

DONALDSON CO INC1 citations75
US12115484B2Oct 15, 2024

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

DONALDSON CO INC1 citations73
US12036499B2Jul 16, 2024

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

DONALDSON CO INC2 citations72
US11318405B2May 3, 2022

Air cleaner assemblies and methods of use

DONALDSON CO INC5 citations72
US11298642B2Apr 12, 2022

Assemblies; components and filter features thereof; and, methods of use and assembly

DONALDSON CO INC2 citations71
US10864469B2Dec 15, 2020

Air cleaner assemblies and methods of use

DONALDSON CO INC4 citations71
US11224833B2Jan 18, 2022

Particle separator filter with an axially extending flow face

DONALDSON CO INC3 citations70
US12357934B2Jul 15, 2025

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

DONALDSON CO INC0 citations62
US11951433B2Apr 9, 2024

Air cleaner assemblies and methods of use

DONALDSON CO INC0 citations62
US12403419B1Sep 2, 2025

Filter elements and assemblies

DONALDSON CO INC0 citations61
US12214307B2Feb 4, 2025

Air cleaner assemblies and methods of use

DONALDSON CO INC0 citations61
US11684882B2Jun 27, 2023

Air cleaner assemblies and methods of use

DONALDSON CO INC0 citations61
US12447430B2Oct 21, 2025

Assemblies; components and filter features thereof; and, methods of use and assembly

DONALDSON CO INC0 citations60
US11938432B2Mar 26, 2024

Assemblies; components and filter features thereof; and, methods of use and assembly

DONALDSON CO INC0 citations60
US11801468B2Oct 31, 2023

Particle separator filter with an axially extending flow face

DONALDSON CO INC0 citations60
US12083464B2Sep 10, 2024

Filter element, air cleaner assembly, and methods

DONALDSON CO INC0 citations59
US12030009B1Jul 9, 2024

Air cleaner assembly with restriction indicator

DONALDSON CO INC0 citations57
US11673086B2Jun 13, 2023

Air cleaner assembly with restriction indicator

DONALDSON CO INC1 citations57
US12434181B1Oct 7, 2025

Air cleaner and filtration assemblies

DONALDSON CO INC0 citations52