Inventor

SIEBENHOFER GOTTFRIED

AT9 patents

⚠️ This page may combine multiple inventors who share the name “SIEBENHOFER GOTTFRIED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

VOEST AG

4 patents

US4404893ASep 20, 1983

VOEST ALPINE AG

3 patents

US4555143ANov 26, 1985

Apparatus for cutting rock

VOEST ALPINE AG19 citations81

US4344354AAug 17, 1982

Valve arrangement for controlling the stroke of a telescoping prop

VOEST ALPINE AG8 citations69

US4299517ANov 10, 1981

Mine roof supporting structure

VOEST ALPINE AG3 citations61

VOEST ALPINE BERGTECHNIK

1 patent

US5498069AMar 12, 1996

Bit holder with a detachably fixed bit bushing

VOEST ALPINE BERGTECHNIK15 citations70

TAMROCK VOEST ALPINE BERGTECH

1 patent

US6257671B1Jul 10, 2001

Device for protecting selective cutting machines against overload

TAMROCK VOEST ALPINE BERGTECH9 citations67