Inventor
HABERKAMP WILLIAM C
US32 patents
⚠️ This page may combine multiple inventors who share the name “HABERKAMP WILLIAM C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FLEETGUARD INC
15 patentsUS7754123B2Jul 13, 2010
High performance filter media with internal nanofiber structure and manufacturing methodology
FLEETGUARD INC90 citations97
US7258719B2Aug 21, 2007
Filter and forming system
FLEETGUARD INC102 citations97
US6946012B1Sep 20, 2005
Filter and forming system
FLEETGUARD INC84 citations97
US6582490B2Jun 24, 2003
Pre-form for exhaust aftertreatment control filter
FLEETGUARD INC108 citations97
US6544310B2Apr 8, 2003
Exhaust aftertreatment filter with particulate distribution pattern
FLEETGUARD INC95 citations97
US6444006B1Sep 3, 2002
High temperature composite ceramic filter
FLEETGUARD INC66 citations96
US6860917B2Mar 1, 2005
Melt-spun ceramic fiber filter and method
FLEETGUARD INC92 citations94
US7250126B2Jul 31, 2007
Acid-neutralizing filter media
FLEETGUARD INC24 citations92
US7211226B2May 1, 2007
Catalyst and filter combination
FLEETGUARD INC43 citations92
US6776814B2Aug 17, 2004
Dual section exhaust aftertreatment filter and method
FLEETGUARD INC50 citations92
US6669913B1Dec 30, 2003
Combination catalytic converter and filter
FLEETGUARD INC50 citations92
US6540816B2Apr 1, 2003
Regenerable filter with localized and efficient heating
FLEETGUARD INC49 citations92
US6887343B2May 3, 2005
Filter coating, winding, finishing and manufacturing system
FLEETGUARD INC52 citations87
US7674425B2Mar 9, 2010
Variable coalescer
FLEETGUARD INC14 citations80
US7913858B2Mar 29, 2011
Acid-neutralizing filter media
FLEETGUARD INC6 citations74
CUMMINS FILTRATION IP INC
14 patentsUS7648546B2Jan 19, 2010
Filter with variable pleat depth
CUMMINS FILTRATION IP INC48 citations97
US7879125B2Feb 1, 2011
Filter with variable pleat depth
CUMMINS FILTRATION IP INC42 citations92
US7235124B2Jun 26, 2007
High temperature nanofilter, system and method
CUMMINS FILTRATION IP INC22 citations92
US10058808B2Aug 28, 2018
Composite filter media utilizing bicomponent fibers
CUMMINS FILTRATION IP INC9 citations84
US8678202B2Mar 25, 2014
Modular filter elements for use in a filter-in-filter cartridge
CUMMINS FILTRATION IP INC14 citations83
US7806956B2Oct 5, 2010
Tuning particulate filter performance through selective plugging and use of multiple particulate filters to reduce emissions and improve thermal robustness
CUMMINS FILTRATION IP INC11 citations83
US10391434B2Aug 27, 2019
Composite filter media utilizing bicomponent fibers
CUMMINS FILTRATION IP INC5 citations73
US10953356B2Mar 23, 2021
Gradient nanofiber filter media
CUMMINS FILTRATION IP INC2 citations72
US10537837B2Jan 21, 2020
Gradient nanofiber filter media
CUMMINS FILTRATION IP INC2 citations72
US9987578B2Jun 5, 2018
Gradient nanofiber filter media
CUMMINS FILTRATION IP INC2 citations72
US12427457B2Sep 30, 2025
Adhesive alloys and filter medias including such adhesive alloys
CUMMINS FILTRATION IP INC0 citations52
US11739451B2Aug 29, 2023
Nonwoven web with bimodal fiber distribution
CUMMINS FILTRATION IP INC0 citations52
US10760208B2Sep 1, 2020
Tuning surface properties of melt blown polyester fibers by hydrolysis and solution grafting
CUMMINS FILTRATION IP INC0 citations50
US10227725B2Mar 12, 2019
Tuning surface properties of melt blown polyester fibers by hydrolysis and solution grafting
CUMMINS FILTRATION IP INC0 citations50