Inventor
MERTEN GERHARD
DE72 patents
⚠️ This page may combine multiple inventors who share the name “MERTEN GERHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DBT GMBH
23 patentsUS5641058AJun 24, 1997
Method and a device for tensioning endless drive belts
DBT GMBH113 citations95
US5601341AFeb 11, 1997
Drive gear and guide arrangement for a mining machine, in particular a disk shearer
DBT GMBH23 citations93
US8038558B2Oct 18, 2011
Chain drive or return arrangement and chain assembly and sprocket employed therein
DBT GMBH29 citations92
US6708817B2Mar 23, 2004
Drive and tensioning station of a chain scraper conveyor
DBT GMBH24 citations92
US5947265ASep 7, 1999
Chain drum arrangement for scraper chain conveyors
DBT GMBH37 citations92
US5927479AJul 27, 1999
Chain drum arrangement for scraper chain conveyors
DBT GMBH21 citations92
US7600822B2Oct 13, 2009
Method for the mining of coal and coal planer installation
DBT GMBH11 citations84
US7731298B2Jun 8, 2010
Shearer-loader drive subassembly and guide shoe for it
DBT GMBH17 citations82
US7032743B2Apr 25, 2006
Conveyor pan
DBT GMBH18 citations81
US6896121B2May 24, 2005
Conveyor pan
DBT GMBH17 citations81
US5913403AJun 22, 1999
Drive station for a scraper-chain conveyor usable in an underground mine working
DBT GMBH19 citations79
US7562764B2Jul 21, 2009
Entry conveyor and pan section for the same
DBT GMBH17 citations77
US5927476AJul 27, 1999
Conveyor pan connection for scraper chain conveyors in particular for use in mining
DBT GMBH13 citations74
US5700061ADec 23, 1997
Guide and drive arrangement for the winning machines of mineral winning installations
DBT GMBH12 citations74
US6655514B1Dec 2, 2003
Scraper chain for scraper chain conveyors
DBT GMBH6 citations73
US6607074B2Aug 19, 2003
Drive station for a chain scraper conveyor for mining operations
DBT GMBH11 citations73
US6513647B1Feb 4, 2003
Scraper chain for scraper chain conveyors
DBT GMBH11 citations73
US6179386B1Jan 30, 2001
Drive chain channel arrangement for longwall shearer
DBT GMBH11 citations73
US7282826B2Oct 16, 2007
Driving device for sprocket wheels of chain drives
DBT GMBH7 citations72
US6959769B2Nov 1, 2005
Plough chain strand comprising a chain lock link
DBT GMBH7 citations72
US5658085AAug 19, 1997
Toggle securing device for toggle joints in chain conveyors and the like
DBT GMBH13 citations72
US6966429B2Nov 22, 2005
Conveyor pan
DBT GMBH8 citations70
US6612424B2Sep 2, 2003
Drive shaft for scraper chain conveyors for double inboard and double outer chain conveyor belts
DBT GMBH3 citations63
GEWERK EISENHUETTE WESTFALIA
13 patentsUS4571003AFeb 18, 1986
Apparatus for controlling the position of a mineral mining machine
GEWERK EISENHUETTE WESTFALIA131 citations96
US4607890AAug 26, 1986
Guides for mineral mining machines
GEWERK EISENHUETTE WESTFALIA28 citations92
US4474411AOct 2, 1984
Guides for mineral mining machines
GEWERK EISENHUETTE WESTFALIA23 citations82
US5137336AAug 11, 1992
Process for the automated winning of mineral, such as coal, in a longwall working
GEWERK EISENHUETTE WESTFALIA14 citations74
US4583785AApr 22, 1986
Mineral winning plough
GEWERK EISENHUETTE WESTFALIA14 citations74
US4557525ADec 10, 1985
Cutter bit assembly
GEWERK EISENHUETTE WESTFALIA10 citations74
US4456307AJun 26, 1984
Cutter bit assembly
GEWERK EISENHUETTE WESTFALIA12 citations74
US4067619AJan 10, 1978
Longwall machine guide with detachable cover plate
GEWERK EISENHUETTE WESTFALIA9 citations73
US5033315AJul 23, 1991
Apparatus for determining the tension in a chain or the like
GEWERK EISENHUETTE WESTFALIA7 citations72
US4934757AJun 19, 1990
Control of mineral mining machines
GEWERK EISENHUETTE WESTFALIA16 citations72
US4275927AJun 30, 1981
Mineral mining plough with worm adjustable roof cutter
GEWERK EISENHUETTE WESTFALIA9 citations68
US4453771AJun 12, 1984
Mineral winning plough with sword plate formed of plural parts
GEWERK EISENHUETTE WESTFALIA5 citations63
US4376553AMar 15, 1983
Floor cutter bit
GEWERK EISENHUETTE WESTFALIA5 citations63
WESTFALIA BECORIT IND TECH
3 patentsUS5553925ASep 10, 1996
Apparatus for automatically adjusting the cutting horizon of a mining extraction apparatus
WESTFALIA BECORIT IND TECH34 citations90
US5167437ADec 1, 1992
Mechanisms for drawing a chain into or through a channel of a chain guide
WESTFALIA BECORIT IND TECH7 citations73
US5343130AAug 30, 1994
Control system for automatically halting the movement of a machine in the mine working
WESTFALIA BECORIT IND TECH9 citations71
HOECHST AG
3 patentsUS5589535ADec 31, 1996
Air-drying polyurethane resins, their preparation and use
HOECHST AG11 citations74
US5525669AJun 11, 1996
Aqueous emulsions comprising polyvinyl butyral
HOECHST AG11 citations74
US5194543AMar 16, 1993
Crosslinkable fluorine-containing copolymers, and surface coatings based on these copolymers
HOECHST AG11 citations73
CATERPILLAR GLOBAL MINING EUR
1 patentBUCYRUS EUROPE GMBH
1 patentMERTEN GERHARD
1 patentBUCYRUS DBT EUROPE GMBH
1 patentDBT AUTOM GMBH
1 patentMEYA HANS
1 patentBERGBAU TECHNIK GMBH DEUTSCHE
1 patentDBT DEUTCHE BERGBAU TECHNIK GM
1 patentShowing the top 50 of 72 patents by PatentIndex Score.