Inventor
BLUMENTHAL GUNTER
9 patents
⚠️ This page may combine multiple inventors who share the name “BLUMENTHAL GUNTER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BOCHUMER EISEN HEINTZMANN
8 patentsUS4094153AJun 13, 1978
Breast roof support system for longwall mining
BOCHUMER EISEN HEINTZMANN13 citations72
US4140430AFeb 20, 1979
Walking mine roof support
BOCHUMER EISEN HEINTZMANN10 citations71
US4028898AJun 14, 1977
Pit prop assembly
BOCHUMER EISEN HEINTZMANN7 citations71
US4008578AFeb 22, 1977
Pit prop assembly
BOCHUMER EISEN HEINTZMANN13 citations71
US4094154AJun 13, 1978
Roof prop apparatus and method for longwall mining
BOCHUMER EISEN HEINTZMANN4 citations61
US3959976AJun 1, 1976
Excavation-roof support
BOCHUMER EISEN HEINTZMANN6 citations60
US3949562AApr 13, 1976
Apparatus for preventing cave-ins of excavations
BOCHUMER EISEN HEINTZMANN5 citations53
US4094155AJun 13, 1978
Mine roof support
BOCHUMER EISEN HEINTZMANN1 citations49