Assignee
TAIHEIYO ENG
15 granted patents·112 citations·filing 1976–1981
Top patents by PatentIndex Score
15 records- 0175US4027918ALongwall coal mining machine with plural cutters on sub-ranging armTAIHEIYO ENG·Filed 1976·Granted Jun 7, 1977·19 cites·8 claims
- 0273US4189257ASheltering apparatus for use in long wall miningTAIHEIYO ENG·Filed 1978·Granted Feb 19, 1980·14 cites·12 claims
- 0362US4351565ARoof sensing control of shearer in longwall miningTAIHEIYO ENG·Filed 1981·Granted Sep 28, 1982·19 cites·3 claims
- 0457US4089182AEquipment for remotely operating self-advancing supports used at the pit face in a coal mineTAIHEIYO ENG·Filed 1976·Granted May 16, 1978·8 cites·10 claims
- 0555US4279443AMining apparatusTAIHEIYO ENG·Filed 1979·Granted Jul 21, 1981·6 cites·11 claims
- 0654US4099786AApparatus for drawing the shearersTAIHEIYO ENG·Filed 1977·Granted Jul 11, 1978·7 cites·10 claims
- 0753US4067618AApparatus for protecting of coal mine workersTAIHEIYO ENG·Filed 1976·Granted Jan 10, 1978·9 cites·1 claims
- 0849US4127303ACoal mining method at a long-walled pit face of the coal mineTAIHEIYO ENG·Filed 1977·Granted Nov 28, 1978·6 cites·3 claims
- 0948US4290648AMining apparatusTAIHEIYO ENG·Filed 1979·Granted Sep 22, 1981·5 cites·13 claims
- 1043US4132079AApparatus for remotely operating self-advancing supports or the likeTAIHEIYO ENG·Filed 1977·Granted Jan 2, 1979·5 cites·9 claims
- 1139US4091627ASystem and equipment for operating self-advancing supportsTAIHEIYO ENG·Filed 1976·Granted May 30, 1978·3 cites·12 claims
- 1238US4099781AApparatus for automatically shifting the conveyor at the pit face in the coal mineTAIHEIYO ENG·Filed 1977·Granted Jul 11, 1978·5 cites·3 claims
- 1335US4151905AOperator carriageTAIHEIYO ENG·Filed 1977·Granted May 1, 1979·4 cites·5 claims
- 1428US4266828AApparatus on drum shearer for cutting through safety wall in long wall miningTAIHEIYO ENG·Filed 1979·Granted May 12, 1981·1 cites·6 claims
- 1528US4196933ASafety wall cutting through method employed in long wall miningTAIHEIYO ENG·Filed 1978·Granted Apr 8, 1980·1 cites·5 claims
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