PEABODY ENERGY CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A61G TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS 135
 
  
 
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
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 186

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7948197 Controlling torsional shaft oscillationJan 18, 08May 24, 11[H02P]
5680925 Conveyor belt lift apparatusNov 22, 95Oct 28, 97[B65G]
5217406 Mine ventilation tubing system and method of installationMar 17, 92Jun 08, 93[E21F]
5134738 Stretcher for use in minesFeb 08, 91Aug 04, 92[A61G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0197,680 CONTROLLING TORSIONAL SHAFT OSCILLATIONAbandonedApr 21, 11Aug 18, 11[G01H]
2007/0170,771 Underground Mine and Method of MiningAbandonedJan 25, 07Jul 26, 07[E21C]
5097103 Lock for trolley connectorExpiredMar 29, 90Mar 17, 92[H01R, B60L]
5071183 Tool for installing cutting blades on gradersExpiredAug 15, 90Dec 10, 91[B66C]
5003236 Method of and apparatus for moving electrically powered mining equipmentExpiredFeb 01, 90Mar 26, 91[B60K]
4925008 Conveyor belt cleaner and method for cleaning a conveyor beltExpiredNov 25, 88May 15, 90[B65G]
4897009 Drill pipe handling apparatusExpiredJan 05, 89Jan 30, 90[E21B]
4876514 Switching and testing systemExpiredJun 24, 88Oct 24, 89[G01R]
4850434 Vibrating deep ripperExpiredMay 03, 88Jul 25, 89[A01B]
4841159 Switching and testing systemExpiredAug 29, 86Jun 20, 89[H02J, G08B]
4821873 Brake systemExpiredApr 13, 87Apr 18, 89[B65G]
4736816 Noise-suppressing air intake for ventilation fansExpiredDec 19, 86Apr 12, 88[F01N]
4612595 DC power control systemExpiredJul 09, 84Sep 16, 86[H02H]
4386877 Mine roof boltingExpiredSep 08, 81Jun 07, 83[E21D]

Top Inventors for This Owner

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