Assignee
ARCH MINERAL CORP
US·3 granted patents·111 citations·filing 1995–1996
Technology mixE21C3
Top patents by PatentIndex Score
3 records- 0180US5667279AApparatus and method for continuous miningARCH MINERAL CORP·Filed 1996·Granted Sep 16, 1997·54 cites·3 claims
- 0262US5810447AApparatus and method for continuous miningARCH MINERAL CORP·Filed 1995·Granted Sep 22, 1998·34 cites·14 claims
- 0356US5709433AApparatus for continuous miningARCH MINERAL CORP·Filed 1996·Granted Jan 20, 1998·23 cites·2 claims
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