Inventor
FLEMMING DOUGLAS E
US12 patents
Patents
12 patentsUS4851015AJul 25, 1989
Muffler apparatus with filter trap and method of use
DONALDSON CO INC186 citations98
US5355973AOct 18, 1994
Muffler with catalytic converter arrangement; and method
DONALDSON CO INC97 citations97
US6550573B2Apr 22, 2003
Muffler with catalytic converter arrangement, and method
DONALDSON CO INC47 citations96
US5828013AOct 27, 1998
Muffler with catalytic converter arrangement; and method
DONALDSON CO INC48 citations96
US4899540AFeb 13, 1990
Muffler apparatus with filter trap and method of use
DONALDSON CO INC65 citations96
US5426269AJun 20, 1995
Muffler with catalytic converter arrangement; and method
DONALDSON CO INC102 citations95
US5053603AOct 1, 1991
Electrical resistance heater
DONALDSON CO INC55 citations94
US6892854B2May 17, 2005
Muffler with catalytic converter arrangement; and method
DONALDSON CO INC25 citations92
US5101095AMar 31, 1992
Diesel engine gas filter with electrical heater
DONALDSON CO INC43 citations91
US4790574ADec 13, 1988
Apparatus for coupling tubular members
DONALDSON CO INC50 citations90
US4878928ANov 7, 1989
Apparatus for increasing regenerative filter heating element temperature
DONALDSON CO INC32 citations86
US4832661AMay 23, 1989
Apparatus and method for maintaining alternator output above predetermined levels
DONALDSON CO INC17 citations74