Assignee
COALTEX
15 granted patents·213 citations·filing 1976–1995
Top patents by PatentIndex Score
15 records- 0190US4172616ACutting head with self-contained power sourceCOALTEX·Filed 1978·Granted Oct 30, 1979·39 cites·23 claims
- 0280US5056655AHighwall miner with conveyor moduleCOALTEX·Filed 1990·Granted Oct 15, 1991·36 cites·20 claims
- 0374US4003602AMethod and apparatus for in-cutting and out-cutting during coal miningCOALTEX·Filed 1976·Granted Jan 18, 1977·14 cites·14 claims
- 0470US4082362AApparatus for coal mining in-cutting and out-cuttingCOALTEX·Filed 1977·Granted Apr 4, 1978·12 cites·21 claims
- 0569US5129502AHelical snakeCOALTEX·Filed 1991·Granted Jul 14, 1992·25 cites·15 claims
- 0669US4120535AScoop-belt minerCOALTEX·Filed 1977·Granted Oct 17, 1978·14 cites·26 claims
- 0763US4037875AFull face minerCOALTEX·Filed 1976·Granted Jul 26, 1977·10 cites·16 claims
- 0851US4239289AManeuverable full face minerCOALTEX·Filed 1979·Granted Dec 16, 1980·6 cites·15 claims
- 0948US4889392AAdvance/retreat cutting miner and methodCOALTEX·Filed 1989·Granted Dec 26, 1989·15 cites·20 claims
- 1043US5087101APower spiral conveyor section and methodCOALTEX·Filed 1990·Granted Feb 11, 1992·14 cites·20 claims
- 1142US4763955APitch seam miningCOALTEX·Filed 1983·Granted Aug 16, 1988·9 cites·18 claims
- 1236US5582466AAdvance/retreat cutting miner with simple conveyorCOALTEX·Filed 1995·Granted Dec 10, 1996·10 cites·20 claims
- 1332US5152389ACurvilinear haulage systemCOALTEX·Filed 1991·Granted Oct 6, 1992·4 cites·20 claims
- 1430US4556257AHorizontal edna minerCOALTEX·Filed 1983·Granted Dec 3, 1985·3 cites·6 claims
- 1517US4192550AReflected light determination of geological strataCOALTEX·Filed 1978·Granted Mar 11, 1980·2 cites·27 claims
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