J.S. REDPATH LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD 221
 
  
 
E21B EARTH OR ROCK DRILLING 294
 
  
 
B61B RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR 117
 
  
 
E21D SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS 115
 
  
 
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
8362721 Battery powered mechanized raise climbing systemFeb 20, 09Jan 29, 13[H02P]
8172499 Portable raise climbing systemAug 30, 11May 08, 12[B66F]
8021098 Portable raise climbing systemJun 19, 08Sep 20, 11[B66F]
7987794 Side shift raise climbing systemSep 11, 08Aug 02, 11[B61B]
7490680 Process and system for drilling and lining a bore holeApr 10, 07Feb 17, 09[E21B]
7293615 Earth boring systemNov 22, 04Nov 13, 07[E21D]
7219750 Process and system for drilling and lining a bore holeJan 27, 04May 22, 07[E21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0273,196 Method and apparatus for utilizing the full capacity of a particular type of mine hoist for excavating deep shaftsAbandonedFeb 02, 01Nov 29, 07[E21B, E21C]

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