Inventor
HERMAN JOHN T
US25 patents
⚠️ This page may combine multiple inventors who share the name “HERMAN JOHN T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DONALDSON CO INC
21 patentsUS5800587ASep 1, 1998
Filtration arrangement and method
DONALDSON CO INC115 citations99
US5423892AJun 13, 1995
Filtration arrangement
DONALDSON CO INC119 citations99
US5364456ANov 15, 1994
Filtration arrangement and method
DONALDSON CO INC140 citations99
US5238474AAug 24, 1993
Filtration arrangement
DONALDSON CO INC301 citations99
US5082476AJan 21, 1992
Filtration arrangement and method
DONALDSON CO INC357 citations99
US5622537AApr 22, 1997
Filtration arrangement
DONALDSON CO INC70 citations97
US6019809AFeb 1, 2000
Filtration arrangement
DONALDSON CO INC43 citations96
US5792227AAug 11, 1998
Filtration arrangement
DONALDSON CO INC47 citations96
US5762669AJun 9, 1998
Filtration arrangement
DONALDSON CO INC33 citations96
US6508277B1Jan 21, 2003
Flexible pipe with compressed ends
DONALDSON CO INC21 citations92
US6305054B1Oct 23, 2001
Exhaust system clamp
DONALDSON CO INC37 citations92
US6234541B1May 22, 2001
U-bolt clamp for sealing lap joints
DONALDSON CO INC47 citations92
USD436028SJan 9, 2001
U-bolt clamp
DONALDSON CO INC25 citations92
US5762670AJun 9, 1998
Filtration arrangement
DONALDSON CO INC19 citations92
US5246472ASep 21, 1993
Apparatus for filtering engine exhaust
DONALDSON CO INC42 citations92
US4366069ADec 28, 1982
Coolant recovery system
DONALDSON CO INC36 citations89
US4406651ASep 27, 1983
Multi-phase self purging centrifuge
DONALDSON CO INC27 citations82
US7410530B2Aug 12, 2008
Apparatus for cleaning exhaust aftertreatment devices and methods
DONALDSON CO INC13 citations81
US4350282ASep 21, 1982
Self-purging centrifuge
DONALDSON CO INC15 citations74
US6311736B2Nov 6, 2001
Flexible hose and method for manufacturing
DONALDSON CO INC13 citations73
US6123369ASep 26, 2000
Pipe lap joint and methods
DONALDSON CO INC9 citations73
WAGNER WAYNE M
3 patentsUS8117832B2Feb 21, 2012
Exhaust treatment device with electric regeneration system
WAGNER WAYNE M17 citations91
US8256060B2Sep 4, 2012
Apparatus for cleaning exhaust aftertreatment devices and methods
WAGNER WAYNE M9 citations81
US8769938B2Jul 8, 2014
Exhaust treatment device with electric regeneration system
WAGNER WAYNE M0 citations50