Inventor
ERDMANNSDOERFER HANS
DE20 patents
⚠️ This page may combine multiple inventors who share the name “ERDMANNSDOERFER HANS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MANN & HUMMEL FILTER
18 patentsUS5741421AApr 21, 1998
Filter device
MANN & HUMMEL FILTER97 citations96
US4632682ADec 30, 1986
Cartridge-type oil separator air filter
MANN & HUMMEL FILTER109 citations96
US5071456ADec 10, 1991
Air filter with radially sealing filter insert
MANN & HUMMEL FILTER121 citations95
US4418662ADec 6, 1983
Engine air intake filter with fumes-absorbing substance
MANN & HUMMEL FILTER126 citations94
US6090177AJul 18, 2000
Air filter element with a control tube and divided housing
MANN & HUMMEL FILTER58 citations92
US5693217ADec 2, 1997
Fluid circuit with a primary stream filter and a bypass stream centrifuge
MANN & HUMMEL FILTER21 citations92
US5042249AAug 27, 1991
Soot filter for cleaning the exhaust from an internal combustion engine
MANN & HUMMEL FILTER51 citations92
US4619674AOct 28, 1986
Dual-element filter cartridge for air intake filters designed for a dusty environment
MANN & HUMMEL FILTER46 citations92
US4670233AJun 2, 1987
Method of removing soot which has been trapped in an exhaust gas filter of an internal combustion engine
MANN & HUMMEL FILTER25 citations90
US4516990AMay 14, 1985
Method of removing soot from exhaust gases
MANN & HUMMEL FILTER51 citations90
US5417848AMay 23, 1995
Coalescence separator with changeable coalescence element
MANN & HUMMEL FILTER45 citations86
US4271025AJun 2, 1981
Layered filter cartridge with internal bypass channels
MANN & HUMMEL FILTER24 citations82
US4436535AMar 13, 1984
Method and device for removing soot from exhaust gases
MANN & HUMMEL FILTER26 citations81
US6235089B1May 22, 2001
Filter insert
MANN & HUMMEL FILTER9 citations74
US5707521AJan 13, 1998
Filter element having a nonwoven layer and a permeable shrink tube
MANN & HUMMEL FILTER11 citations73
US5028405AJul 2, 1991
Process and apparatus for the burning off of carbon (SOOT) deposited on exhaust gas filters
MANN & HUMMEL FILTER15 citations71
US4948549AAug 14, 1990
Process for producing soot filter elements
MANN & HUMMEL FILTER6 citations56
US5661975ASep 2, 1997
Soot filtration device
MANN & HUMMEL FILTER1 citations42