Inventor
GREENLEE DONALD R
US17 patents
⚠️ This page may combine multiple inventors who share the name “GREENLEE DONALD R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DRESSER IND
12 patentsUS4791992ADec 20, 1988
Hydraulically operated and released isolation packer
DRESSER IND103 citations93
US5103901AApr 14, 1992
Hydraulically operated well packer
DRESSER IND55 citations92
US4391326AJul 5, 1983
Stinger assembly for oil well tool
DRESSER IND41 citations92
US4750559AJun 14, 1988
Retrievable anchor assembly
DRESSER IND52 citations91
US4593765AJun 10, 1986
Tubing resettable well tool
DRESSER IND21 citations81
US4702313AOct 27, 1987
Slip and slip assembly for well tools
DRESSER IND24 citations80
US5148866ASep 22, 1992
Well tool anchoring mechanism with improved slip release
DRESSER IND15 citations73
US5129453AJul 14, 1992
Quick set well packer
DRESSER IND14 citations73
US4583590AApr 22, 1986
Slip releasing apparatus
DRESSER IND18 citations71
US4856583AAug 15, 1989
Apparatus for treating well bores
DRESSER IND17 citations66
US4189001AFeb 19, 1980
Friction spring and slip retainer for a mechanical setting tubing anchor
DRESSER IND4 citations62
US4265459AMay 5, 1981
Swab cup reinforcing member support
DRESSER IND4 citations54