RAG Aktiengesellschaft

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21C MINING OR QUARRYING914
 
  
 
E21D SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS 511
 
  
 
G01C MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY 2103
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166
 
  
 
E21F SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS 112

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9482091 Face equipment comprising hose levels placed between the face conveyor and the shield support framesApr 02, 12Nov 01, 16[E21D, G01C, E21C]
9470089 Face equipment comprising hose levels placed on the shield support frames of said face equipmentApr 02, 12Oct 18, 16[E21D, G01C, E21C]
9227792 Longwall equipment with a hydrostatic tube balance thereon for determining the height position of individual elements of the longwall equipmentDec 30, 10Jan 05, 16[E21D, B65G, G01C, E21C]
8708421 Method for producing a face opening using automated systemsAug 20, 09Apr 29, 14[E21C]
8672414 Method for controlling longwall mining operationsFeb 19, 08Mar 18, 14[E21D, E21C]
8567870 Method for the controlled maintaining of a distance between the top canopy and the coal face in longwall mining operationsFeb 19, 08Oct 29, 13[E21C]
8567871 Method for automatically creating a defined face opening in longwall mining operationsFeb 19, 08Oct 29, 13[E21C]
8562077 Method of setting an automatic level control of the plow in plowing operations of coal miningDec 11, 09Oct 22, 13[E21D, E21C]
8376467 Method for automatically producing a defined face opening in plow operations in coal miningFeb 19, 08Feb 19, 13[E21C]
8313151 Method of controlling the conveyance of product in underground mining operationsJan 09, 08Nov 20, 12[E21F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8608248 Method for controlling longwall operations using boundary layer recognitionExpiredFeb 19, 08Dec 17, 13[E21C]
8380345 Method for controlling longwall operations with incorporation of air-technology and climate-technology resourcesExpiredFeb 19, 08Feb 19, 13[G06F]
2012/0098,325 Method for the Automated Production of a Defined Face Opening by Means of Slope-Assisted Radar Navigation of the Roller of a Roller Cutter LoaderAbandonedJun 18, 10Apr 26, 12[E21C]
2012/0038,202 Method for Controlling the Depth of ShearsAbandonedFeb 03, 10Feb 16, 12[E21C]
2011/0163,590 Longwall Equipment Having Vertically Adjustable Disc Shearer Loader Guided on the Face ConveyorAbandonedSep 04, 09Jul 07, 11[E21C]
2009/0051,232 Coolant Pump for Electric MotorsAbandonedJul 21, 06Feb 26, 09[H02K, F28D]
2008/0279,627 Method and Apparatus for Introducing a Roadway SupportAbandonedNov 18, 04Nov 13, 08[E01C]
7150351 Scraper chain conveyor comprising plastic pushersExpiredNov 20, 03Dec 19, 06[B65G]
2005/0022,132 Managing objects and sharing information among communitiesAbandonedApr 28, 04Jan 27, 05[G09G]
2004/0140,178 Scraper chain conveyor for use in underground miningAbandonedOct 22, 03Jul 22, 04[B65G]
6571874 Method for the in-situ extraction of gas from coal seamsExpiredMay 30, 01Jun 03, 03[E21B]
6561222 Container for fluidsExpiredMar 29, 00May 13, 03[B67D]

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