Assignee
HDRK MINING RES LTD
CA·3 granted patents·117 citations·filing 1989–1995
Top patents by PatentIndex Score
3 records- 0176US5938288AAutomatic control system and method for a machine used for excavating drifts, tunnels, stopes, or cavernsHDRK MINING RES LTD·Filed 1995·Granted Aug 17, 1999·69 cites·27 claims
- 0254US5024090ALoose rock detectorHDRK MINING RES LTD·Filed 1989·Granted Jun 18, 1991·23 cites·7 claims
- 0351US5340199AMethod and machine for excavating drifts, tunnels, stopes, caverns or the likeHDRK MINING RES LTD·Filed 1991·Granted Aug 23, 1994·25 cites·22 claims
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