Assignee
PIETRALA CHRISTOPH
DE·2 granted patents·5 citations·filing 2010–2010
Top patents by PatentIndex Score
2 records- 0162US8944519B2Rack and pinion arrangement for a mining extraction machine and rack and pinion rod thereforPIETRALA CHRISTOPH·Filed 2010·Granted Feb 3, 2015·3 cites·18 claims
- 0254US9273552B2Feed system for an underground winning machine, rack bar and drive sprocket thereforPIETRALA CHRISTOPH·Filed 2010·Granted Mar 1, 2016·2 cites·16 claims
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