GS

Gottfried Siebenhofer

VO Voest-Alpine: 3 patents #48 of 348Top 15%
VM Voest-Alpine Bergtechnik Gesellschaft M.B.H.: 1 patents #11 of 30Top 40%
Overall (All Time): #761,451 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6257671 Device for protecting selective cutting machines against overload Walter Leitner, Nikolaus Sifferlinger 2001-07-10
5498069 Bit holder with a detachably fixed bit bushing Alfred Zitz, Roman Gerer 1996-03-12
4555143 Apparatus for cutting rock Herwig Wrulich, Otto Schetina, Wilfried Maier 1985-11-26
4404893 Hydraulic mine prop Siegfried Sigott, Heinrich Suessenbeck, Alfred Zitz 1983-09-20
4344354 Valve arrangement for controlling the stroke of a telescoping prop Heinrich Suessenbeck, Rienhard Neuper, Alfred Zitz 1982-08-17
4299517 Mine roof supporting structure Heinrich Suessenbeck, Alfred Zitz 1981-11-10
4197035 Shield-carrying roof support unit Heinrich Sussenbeck 1980-04-08