Inventor
DUWELL ERNEST J
US7 patents
Patents
7 patentsUS4799939AJan 24, 1989
Erodable agglomerates and abrasive products containing the same
MINNESOTA MINING & MFG727 citations97
US4652275AMar 24, 1987
Erodable agglomerates and abrasive products containing the same
MINNESOTA MINING & MFG576 citations97
US5078753AJan 7, 1992
Coated abrasive containing erodable agglomerates
MINNESOTA MINING & MFG280 citations95
US5578098ANov 26, 1996
Coated abrasive containing erodible agglomerates
MINNESOTA MINING & MFG82 citations94
US5045091ASep 3, 1991
Method of making rotary brush with removable brush elements
MINNESOTA MINING & MFG78 citations94
US4705124ANov 10, 1987
Cutting element with wear resistant crown
MINNESOTA MINING & MFG123 citations94
US5454750AOct 3, 1995
Coated abrasive containing erodable agglomerates
MINNESOTA MINING & MFG74 citations93