Inventor
GIBB JAMES L
US4 patents
Patents
4 patentsUS4680230AJul 14, 1987
Particulate ceramic useful as a proppant
MINNESOTA MINING & MFG140 citations95
US4944905AJul 31, 1990
Particulate ceramic useful as a proppant
MINNESOTA MINING & MFG82 citations93
US4923714AMay 8, 1990
Novolac coated ceramic particulate
MINNESOTA MINING & MFG102 citations93
US4869960ASep 26, 1989
Epoxy novolac coated ceramic particulate
MINNESOTA MINING & MFG78 citations93