Assignee
BOCHUMER EISEN HEINTZMANN
DE·69 granted patents·1 pending application·792 citations·filing 1974–2009
Top patents by PatentIndex Score
70 records- 0196US4255071ASupporting of excavation roofsBOCHUMER EISEN HEINTZMANN·Filed 1979·Granted Mar 10, 1981·54 cites·17 claims
- 0287US4440526ARock anchoring arrangementBOCHUMER EISEN HEINTZMANN·Filed 1981·Granted Apr 3, 1984·33 cites·21 claims
- 0381US4887935AMethod of controlling the movement of a longwall excavation front, especially the face or breast of a coal seamBOCHUMER EISEN HEINTZMANN·Filed 1988·Granted Dec 19, 1989·54 cites·14 claims
- 0481US4277204AExcavation roof support and method of installing the sameBOCHUMER EISEN HEINTZMANN·Filed 1979·Granted Jul 7, 1981·34 cites·16 claims
- 0580US4244521AArrangement for discharging liquid medium under high pressureBOCHUMER EISEN HEINTZMANN·Filed 1979·Granted Jan 13, 1981·46 cites·27 claims
- 0675US4332512AArrangement for erecting columnar supporting elements for underground excavationsBOCHUMER EISEN HEINTZMANN·Filed 1980·Granted Jun 1, 1982·19 cites·29 claims
- 0775US4178859ADoor-like closureBOCHUMER EISEN HEINTZMANN·Filed 1977·Granted Dec 18, 1979·39 cites·15 claims
- 0873US4185873AMachine for mechanically advancing clean cut underground mining galleries of various profilesBOCHUMER EISEN HEINTZMANN·Filed 1978·Granted Jan 29, 1980·15 cites·27 claims
- 0972US4610424AShut-off valveBOCHUMER EISEN HEINTZMANN·Filed 1984·Granted Sep 9, 1986·28 cites·6 claims
- 1072US4465404AWall element for an underground galleryBOCHUMER EISEN HEINTZMANN·Filed 1982·Granted Aug 14, 1984·17 cites·12 claims
- 1171US5624162ALong-wall mining machine with a working chainBOCHUMER EISEN HEINTZMANN·Filed 1995·Granted Apr 29, 1997·48 cites·12 claims
- 1269US5647640AContinuously operating mining machines with plow and conveyor chains and method of operating sameBOCHUMER EISEN HEINTZMANN·Filed 1996·Granted Jul 15, 1997·40 cites·11 claims
- 1368US4094153ABreast roof support system for longwall miningBOCHUMER EISEN HEINTZMANN·Filed 1976·Granted Jun 13, 1978·13 cites·11 claims
- 1468US4077670AMethod and apparatus for advancing and supporting an underground mine galleryBOCHUMER EISEN HEINTZMANN·Filed 1977·Granted Mar 7, 1978·14 cites·10 claims
- 1568US4008578APit prop assemblyBOCHUMER EISEN HEINTZMANN·Filed 1976·Granted Feb 22, 1977·13 cites·10 claims
- 1665US4576524ARock anchor arrangementBOCHUMER EISEN HEINTZMANN·Filed 1984·Granted Mar 18, 1986·14 cites·7 claims
- 1761US4309130AMine roof supportBOCHUMER EISEN HEINTZMANN·Filed 1980·Granted Jan 5, 1982·12 cites·10 claims
- 1860US4140430AWalking mine roof supportBOCHUMER EISEN HEINTZMANN·Filed 1978·Granted Feb 20, 1979·10 cites·10 claims
- 1958US5564867AResilienty compressible support column for use in a mineBOCHUMER EISEN HEINTZMANN·Filed 1994·Granted Oct 15, 1996·26 cites·9 claims
- 2056US4252476AHydraulically operated mine prop with safety valveBOCHUMER EISEN HEINTZMANN·Filed 1979·Granted Feb 24, 1981·13 cites·14 claims
- 2153US6880308B2Lattice girder supporting frame having straight brace partsBOCHUMER EISEN HEINTZMANN·Filed 2001·Granted Apr 19, 2005·8 cites·8 claims
- 2251US4038829AMethod of and apparatus for lining a tunnelBOCHUMER EISEN HEINTZMANN·Filed 1976·Granted Aug 2, 1977·9 cites·28 claims
- 2350US4028898APit prop assemblyBOCHUMER EISEN HEINTZMANN·Filed 1976·Granted Jun 14, 1977·7 cites·15 claims
- 2448US4905520APressure sensorBOCHUMER EISEN HEINTZMANN·Filed 1988·Granted Mar 6, 1990·12 cites·4 claims
- 2548US3959976AExcavation-roof supportBOCHUMER EISEN HEINTZMANN·Filed 1975·Granted Jun 1, 1976·6 cites·10 claims
- 2646US6921232B2Mine roof-support trussBOCHUMER EISEN HEINTZMANN·Filed 2004·Granted Jul 26, 2005·5 cites·12 claims
- 2746US5484130ASupport column for use in a mineBOCHUMER EISEN HEINTZMANN·Filed 1994·Granted Jan 16, 1996·17 cites·8 claims
- 2845US4798417AMethod of separating the upper coal in seamsBOCHUMER EISEN HEINTZMANN·Filed 1987·Granted Jan 17, 1989·14 cites·5 claims
- 2945US4065930AMine roof supportBOCHUMER EISEN HEINTZMANN·Filed 1977·Granted Jan 3, 1978·5 cites·11 claims
- 3045US2009202310A1Support for underground mining and tunnel constructionBOCHUMER EISEN HEINTZMANN·Filed 2009·Application pending·0 cites
- 3144US4640650AHydraulically operated unit for roof supportBOCHUMER EISEN HEINTZMANN·Filed 1983·Granted Feb 3, 1987·8 cites·14 claims
- 3243US5314161AMine propBOCHUMER EISEN HEINTZMANN·Filed 1992·Granted May 24, 1994·14 cites·7 claims
- 3343US4309131AMine roof supportBOCHUMER EISEN HEINTZMANN·Filed 1980·Granted Jan 5, 1982·6 cites·15 claims
- 3443US4254995AProcess of and an arrangement for miningBOCHUMER EISEN HEINTZMANN·Filed 1979·Granted Mar 10, 1981·6 cites·22 claims
- 3542US5144275APositioning cylinder, especially for subterranean miningBOCHUMER EISEN HEINTZMANN·Filed 1991·Granted Sep 1, 1992·9 cites·4 claims
- 3641US4183700AWalking mine supportBOCHUMER EISEN HEINTZMANN·Filed 1978·Granted Jan 15, 1980·4 cites·8 claims
- 3741US4094154ARoof prop apparatus and method for longwall miningBOCHUMER EISEN HEINTZMANN·Filed 1976·Granted Jun 13, 1978·4 cites·19 claims
- 3839US6267211B1Drive unit for machinery, especially mining machineryBOCHUMER EISEN HEINTZMANN·Filed 1999·Granted Jul 31, 2001·9 cites·9 claims
- 3939US4657443AArrangement for supervising synchronous displacement of the pistons of two cylinder-and-piston unitsBOCHUMER EISEN HEINTZMANN·Filed 1986·Granted Apr 14, 1987·10 cites·2 claims
- 4039US4437562AChain bucket conveyorBOCHUMER EISEN HEINTZMANN·Filed 1981·Granted Mar 20, 1984·6 cites·17 claims
- 4139US3992888AHydraulic pit propBOCHUMER EISEN HEINTZMANN·Filed 1976·Granted Nov 23, 1976·4 cites·10 claims
- 4238US5090775AMethod of monitoring and controlling mining operationsBOCHUMER EISEN HEINTZMANN·Filed 1990·Granted Feb 25, 1992·11 cites·4 claims
- 4338US4080794AArrangement for supporting roofs of underground excavationsBOCHUMER EISEN HEINTZMANN·Filed 1977·Granted Mar 28, 1978·4 cites·7 claims
- 4436US5110187AApparatus for the mining of mineral matter, especially coalBOCHUMER EISEN HEINTZMANN·Filed 1991·Granted May 5, 1992·13 cites·18 claims
- 4536US4220424AValve arrangement for a walking mine roof supportBOCHUMER EISEN HEINTZMANN·Filed 1978·Granted Sep 2, 1980·4 cites·8 claims
- 4635US4352602ARoof support for a mine gallery which extends at a relatively large angle inclined to the horizontalBOCHUMER EISEN HEINTZMANN·Filed 1981·Granted Oct 5, 1982·4 cites·10 claims
- 4735US4280734AArrangement for controlled engagement of the tools of a mining machine with a mine faceBOCHUMER EISEN HEINTZMANN·Filed 1979·Granted Jul 28, 1981·3 cites·12 claims
- 4834US4900091AElectrohydraulic coal-mining systemBOCHUMER EISEN HEINTZMANN·Filed 1988·Granted Feb 13, 1990·9 cites·6 claims
- 4934US4586424AHydraulic control arrangementBOCHUMER EISEN HEINTZMANN·Filed 1983·Granted May 6, 1986·4 cites·9 claims
- 5033US4252477AMine roof supportBOCHUMER EISEN HEINTZMANN·Filed 1979·Granted Feb 24, 1981·3 cites·7 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
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