Inventor
TOMASHEK JAMES R
US9 patents
⚠️ This page may combine multiple inventors who share the name “TOMASHEK JAMES R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BJ HUGHES INC
4 patentsUS4187546AFeb 5, 1980
Computer-controlled oil drilling rig having drawworks motor and brake control arrangement
BJ HUGHES INC62 citations93
US4139891AFeb 13, 1979
Elevator load control arrangement for a computer-controlled oil drilling rig
BJ HUGHES INC52 citations92
US4128888ADec 5, 1978
Velocity control arrangement for a computer-controlled oil drilling rig
BJ HUGHES INC37 citations92
US4119837AOct 10, 1978
Block position and speed transducer for a computer-controlled oil drilling rig
BJ HUGHES INC12 citations72