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
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →