Assignee
DBT GMBH
US·88 granted patents·1 pending application·932 citations·filing 1995–2021
Top patents by PatentIndex Score
89 records- 0195US8038558B2Chain drive or return arrangement and chain assembly and sprocket employed thereinDBT GMBH·Filed 2006·Granted Oct 18, 2011·29 cites·13 claims
- 0295US5641058AMethod and a device for tensioning endless drive beltsDBT GMBH·Filed 1995·Granted Jun 24, 1997·113 cites·12 claims
- 0392US7117989B2Device for detecting the tension of scraper chainsDBT GMBH·Filed 2004·Granted Oct 10, 2006·65 cites·17 claims
- 0488US7490911B2Drive device for rotating and oscillating a tool, and a compatible tool for miningDBT GMBH·Filed 2006·Granted Feb 17, 2009·27 cites·27 claims
- 0583US7731298B2Shearer-loader drive subassembly and guide shoe for itDBT GMBH·Filed 2007·Granted Jun 8, 2010·17 cites·13 claims
- 0680US7604113B2Chain wheel arrangementDBT GMBH·Filed 2005·Granted Oct 20, 2009·17 cites·12 claims
- 0780US7562764B2Entry conveyor and pan section for the sameDBT GMBH·Filed 2007·Granted Jul 21, 2009·17 cites·20 claims
- 0880US6708817B2Drive and tensioning station of a chain scraper conveyorDBT GMBH·Filed 2001·Granted Mar 23, 2004·24 cites·16 claims
- 0979US7631942B2Device for milling rock and other materials and method for milling rock or the like using said deviceDBT GMBH·Filed 2006·Granted Dec 15, 2009·14 cites·54 claims
- 1078US7600822B2Method for the mining of coal and coal planer installationDBT GMBH·Filed 2006·Granted Oct 13, 2009·11 cites·12 claims
- 1176US6615705B2Hydraulic cylinderDBT GMBH·Filed 2001·Granted Sep 9, 2003·18 cites·10 claims
- 1275US7393061B2Coal plow cutterDBT GMBH·Filed 2005·Granted Jul 1, 2008·10 cites·11 claims
- 1375US6513647B1Scraper chain for scraper chain conveyorsDBT GMBH·Filed 2000·Granted Feb 4, 2003·11 cites·9 claims
- 1474US7399039B2Baseplate plow guide sectionDBT GMBH·Filed 2006·Granted Jul 15, 2008·9 cites·15 claims
- 1571US7540693B2Method for pillar recovery in chamber-and-pillar working and tubbing unit for pillar recoveryDBT GMBH·Filed 2006·Granted Jun 2, 2009·9 cites·12 claims
- 1671US7201541B2Prop head bearingDBT GMBH·Filed 2005·Granted Apr 10, 2007·17 cites·14 claims
- 1771US7032743B2Conveyor panDBT GMBH·Filed 2003·Granted Apr 25, 2006·18 cites·28 claims
- 1870US6896121B2Conveyor panDBT GMBH·Filed 2003·Granted May 24, 2005·17 cites·29 claims
- 1969US5947265AChain drum arrangement for scraper chain conveyorsDBT GMBH·Filed 1997·Granted Sep 7, 1999·37 cites·25 claims
- 2067US7097256B2Mining machine with releasable guide piece and the guide piece for itDBT GMBH·Filed 2005·Granted Aug 29, 2006·5 cites·17 claims
- 2165US6073654AHydraulically trippable check valve for underground mine support hydraulicsDBT GMBH·Filed 1999·Granted Jun 13, 2000·25 cites·47 claims
- 2263US7643262B2Protection circuit for intrinsically safe electro-magnetic actuators and a protection circuit for intrinsically safe energy supply systemsDBT GMBH·Filed 2006·Granted Jan 5, 2010·3 cites·26 claims
- 2363US7347501B2Plow baseplateDBT GMBH·Filed 2006·Granted Mar 25, 2008·3 cites·16 claims
- 2463US5927479AChain drum arrangement for scraper chain conveyorsDBT GMBH·Filed 1997·Granted Jul 27, 1999·21 cites·44 claims
- 2562US7641286B2Plough guide for a chain-pulled ploughDBT GMBH·Filed 2006·Granted Jan 5, 2010·4 cites·9 claims
- 2662US7314253B2Plough for underground miningDBT GMBH·Filed 2005·Granted Jan 1, 2008·3 cites·8 claims
- 2762US6607074B2Drive station for a chain scraper conveyor for mining operationsDBT GMBH·Filed 2001·Granted Aug 19, 2003·11 cites·19 claims
- 2861US7073870B2Bit holder for a ploughing bit of a coal or extraction plough and ploughing bitDBT GMBH·Filed 2004·Granted Jul 11, 2006·8 cites·20 claims
- 2961US6959769B2Plough chain strand comprising a chain lock linkDBT GMBH·Filed 2003·Granted Nov 1, 2005·7 cites·18 claims
- 3061US6837269B2Electrohydraulic control deviceDBT GMBH·Filed 2002·Granted Jan 4, 2005·9 cites·17 claims
- 3159US7177709B2Controller for underground miningDBT GMBH·Filed 2004·Granted Feb 13, 2007·9 cites·16 claims
- 3258US7428861B2Valve for hydraulic props of shield-type support frames, and shield-type support frameDBT GMBH·Filed 2004·Granted Sep 30, 2008·7 cites·16 claims
- 3358US7282826B2Driving device for sprocket wheels of chain drivesDBT GMBH·Filed 2004·Granted Oct 16, 2007·7 cites·22 claims
- 3457US7055913B2Chain guide arrangement on a mining machineDBT GMBH·Filed 2005·Granted Jun 6, 2006·2 cites·16 claims
- 3557US6848748B2Mining system with drilling, loading, conveyor, and supportDBT GMBH·Filed 2001·Granted Feb 1, 2005·10 cites·11 claims
- 3657US6843364B2Toggle bar link for conveyor and guideway pans and toggle bars, toggle bar sockets, safety elements, pans and assembly tools for toggle bar linksDBT GMBH·Filed 2001·Granted Jan 18, 2005·8 cites·7 claims
- 3756US7431401B2Slide shoe for mining winning machineDBT GMBH·Filed 2006·Granted Oct 7, 2008·2 cites·9 claims
- 3856US5913403ADrive station for a scraper-chain conveyor usable in an underground mine workingDBT GMBH·Filed 1996·Granted Jun 22, 1999·19 cites·25 claims
- 3955US6966429B2Conveyor panDBT GMBH·Filed 2003·Granted Nov 22, 2005·8 cites·19 claims
- 4054US7320625B2Control device for electrohydraulic support controllerDBT GMBH·Filed 2005·Granted Jan 22, 2008·2 cites·16 claims
- 4154US7188441B2Plow guide for a chain-pulled plowDBT GMBH·Filed 2004·Granted Mar 13, 2007·6 cites·27 claims
- 4254US7070040B2Toggle and toggle connection assemblyDBT GMBH·Filed 2004·Granted Jul 4, 2006·6 cites·28 claims
- 4354US5601341ADrive gear and guide arrangement for a mining machine, in particular a disk shearerDBT GMBH·Filed 1995·Granted Feb 11, 1997·23 cites·57 claims
- 4453US6609539B2Hydraulically operated directional control valveDBT GMBH·Filed 2001·Granted Aug 26, 2003·5 cites·16 claims
- 4553US5938000AConveyor chute for chain scraper conveyors, in particular for use in miningDBT GMBH·Filed 1998·Granted Aug 17, 1999·17 cites·38 claims
- 4652US6799675B2Toggle retainer for toggle connectionsDBT GMBH·Filed 2002·Granted Oct 5, 2004·6 cites·12 claims
- 4752US6779776B2Intrinsically safe electrically magnetically operated hydraulic valveDBT GMBH·Filed 2003·Granted Aug 24, 2004·6 cites·12 claims
- 4852US6769742B2Clamped chain cover for longwall plough guideDBT GMBH·Filed 2002·Granted Aug 3, 2004·5 cites·18 claims
- 4951US12272513B2Electron emitter structure, external photoelectric effect emitter, particle collecting device, tunnel surface emitter, semiconductor- based direct emitter and liquid ioniser comprising same, gas sensor comprising an emitter or emitter structure, method for generating free electrons, and method for collecting particlesDBT GMBH·Filed 2021·Granted Apr 8, 2025·0 cites·20 claims
- 5051US7392896B2Trough pan for a face conveyor with a loading rampDBT GMBH·Filed 2002·Granted Jul 1, 2008·5 cites·17 claims
Showing the top 50 of 89 patent records by PatentIndex Score.
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