Inventor
ELFSTRAND JAMES K
US8 patents
Patents
8 patentsUS5858044AJan 12, 1999
Filter arrangement including removable filter with first and second media secured together
DONALDSON CO INC67 citations94
US6015452AJan 18, 2000
Method of servicing an air cleaner and of filtering engine intake air using prefilter arrangements
DONALDSON CO INC26 citations91
USD407808SApr 6, 1999
Filter element having circular sleeve
DONALDSON CO INC32 citations91
USD404807SJan 26, 1999
Filter sleeve
DONALDSON CO INC37 citations91
USD402361SDec 8, 1998
Panel filter construction
DONALDSON CO INC24 citations91
US6340375B1Jan 22, 2002
Air cleaner; method and use
DONALDSON CO INC15 citations90
US6059851AMay 9, 2000
Air cleaner; method and use
DONALDSON CO INC31 citations90
USD418592SJan 4, 2000
Air cleaner
DONALDSON CO INC7 citations71