ROBBINS COMPANY, THE

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21D SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS 79
 
  
 
E21B EARTH OR ROCK DRILLING 294
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9845677 Cutter assembly with inline mountingOct 27, 16Dec 19, 17[E21D, E21B]
9010872 Tunnel boring machine with cutterhead support assembly supporting a variable number of drive systemsJun 24, 13Apr 21, 15[E21D]
8783786 Cutter assembly for tunnel boring machine with pressure compensationFeb 16, 12Jul 22, 14[E21D]
8172334 Apparatus and method for monitoring tunnel boring efficiencyMay 29, 09May 08, 12[E21D]
7832960 All-conditions tunnel boring machineDec 17, 08Nov 16, 10[E21D]
6390287 Self-adjusting carrying idler assemblyJun 10, 99May 21, 02[B65G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6955232 Equipment for drilling vertical boreholesExpiredNov 20, 02Oct 18, 05[E21B]
5192116 Gantry-type mobile mining machineExpiredMay 28, 91Mar 09, 93[E21C]
4646853 Shaft boring machine and methodExpiredJul 31, 84Mar 03, 87[E21D]
4381038 Raise bit with cutters stepped in a spiral and flywheelExpiredNov 21, 80Apr 26, 83[E21B]
4365677 Earth boring apparatusExpiredMar 23, 81Dec 28, 82[E21C]
4270618 Earth boring apparatusExpiredApr 20, 79Jun 02, 81[E21B]

Top Inventors for This Owner

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