Assignee
PEABODY COAL CO
28 granted patents·459 citations·filing 1975–1992
Top patents by PatentIndex Score
28 records- 0189US4303354AMine roof boltingPEABODY COAL CO·Filed 1979·Granted Dec 1, 1981·49 cites·2 claims
- 0286US4380353ADust control system and method of operationPEABODY COAL CO·Filed 1981·Granted Apr 19, 1983·79 cites·23 claims
- 0385US4200335AGauging apparatus and method, particularly for controlling mining by a mining machinePEABODY COAL CO·Filed 1978·Granted Apr 29, 1980·29 cites·42 claims
- 0483US4386877AMine roof boltingPEABODY COAL CO·Filed 1981·Granted Jun 7, 1983·36 cites·3 claims
- 0583US4156595AFormcoke process and apparatusPEABODY COAL CO·Filed 1978·Granted May 29, 1979·32 cites·17 claims
- 0683US4102550AMining method and apparatusPEABODY COAL CO·Filed 1976·Granted Jul 25, 1978·26 cites·5 claims
- 0782US4841159ASwitching and testing systemPEABODY COAL CO·Filed 1986·Granted Jun 20, 1989·42 cites·16 claims
- 0876US4173373AAdvance method and apparatus for miningPEABODY COAL CO·Filed 1977·Granted Nov 6, 1979·19 cites·5 claims
- 0973US4409067AQuenching method and apparatusPEABODY COAL CO·Filed 1982·Granted Oct 11, 1983·15 cites·5 claims
- 1068US4100034AQuenching methodPEABODY COAL CO·Filed 1976·Granted Jul 11, 1978·12 cites·2 claims
- 1153US5071183ATool for installing cutting blades on gradersPEABODY COAL CO·Filed 1990·Granted Dec 10, 1991·24 cites·13 claims
- 1253US4082360AMining apparatus and methodPEABODY COAL CO·Filed 1976·Granted Apr 4, 1978·8 cites·16 claims
- 1351US4314887AApparatus for producing coke from fine and coarse coalPEABODY COAL CO·Filed 1979·Granted Feb 9, 1982·6 cites·2 claims
- 1448US4196051AMethod for producing coke from fine and coarse coalPEABODY COAL CO·Filed 1978·Granted Apr 1, 1980·5 cites·2 claims
- 1543US4897009ADrill pipe handling apparatusPEABODY COAL CO·Filed 1989·Granted Jan 30, 1990·15 cites·14 claims
- 1641US4287692ASafety apparatus for a mining machinePEABODY COAL CO·Filed 1979·Granted Sep 8, 1981·5 cites·10 claims
- 1734US3969088AFormcoke processPEABODY COAL CO·Filed 1975·Granted Jul 13, 1976·3 cites·12 claims
- 1833US4612595ADC power control systemPEABODY COAL CO·Filed 1984·Granted Sep 16, 1986·7 cites·15 claims
- 1932US4340920AMine vehicle safety apparatusPEABODY COAL CO·Filed 1981·Granted Jul 20, 1982·7 cites·9 claims
- 2029US5003236AMethod of and apparatus for moving electrically powered mining equipmentPEABODY COAL CO·Filed 1990·Granted Mar 26, 1991·11 cites·26 claims
- 2129US4850434AVibrating deep ripperPEABODY COAL CO·Filed 1988·Granted Jul 25, 1989·7 cites·18 claims
- 2224US4876514ASwitching and testing systemPEABODY COAL CO·Filed 1988·Granted Oct 24, 1989·1 cites·5 claims
- 2321US4821873ABrake systemPEABODY COAL CO·Filed 1987·Granted Apr 18, 1989·5 cites·10 claims
- 2417US4736816ANoise-suppressing air intake for ventilation fansPEABODY COAL CO·Filed 1986·Granted Apr 12, 1988·0 cites·13 claims
- 2515US5134738AStretcher for use in minesPEABODY COAL CO·Filed 1991·Granted Aug 4, 1992·6 cites·12 claims
- 2615US5097103ALock for trolley connectorPEABODY COAL CO·Filed 1990·Granted Mar 17, 1992·5 cites·6 claims
- 2714US4925008AConveyor belt cleaner and method for cleaning a conveyor beltPEABODY COAL CO·Filed 1988·Granted May 15, 1990·2 cites·9 claims
- 2813US5217406AMine ventilation tubing system and method of installationPEABODY COAL CO·Filed 1992·Granted Jun 8, 1993·3 cites·24 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →