CONCENTRIC ROCKFORD INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 738
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 656
 
  
 
F01B MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES 522
 
  
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 425
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 487
 
  
 
G01F MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME 257
 
  
 
B60T VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL 172
 
  
 
E02F DREDGING; SOIL-SHIFTING 144
 
  
 
F03C POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS 123
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9746005 Velocity control for hydraulic control systemApr 18, 12Aug 29, 17[F15B]
9222486 Engine augmentation of hydraulic control systemApr 18, 12Dec 29, 15[F15B, F16D]
9115770 Rotary hydraulic machine and controlsJul 19, 11Aug 25, 15[F04B, F16D, F01C]
8596055 Hydraulic drive systemApr 18, 12Dec 03, 13[F15B, E02F]
8196397 Hydraulic drive systemNov 19, 10Jun 12, 12[F15B, E02F]
7992484 Rotary hydraulic machine and controlsAug 10, 06Aug 09, 11[F01B]
7856817 Hydraulic drive systemApr 13, 09Dec 28, 10[E02F]
7641290 Shuttle valve for bi-rotational power unitsMay 04, 06Jan 05, 10[B60T]
7516613 Hydraulic drive systemDec 01, 05Apr 14, 09[F15B, E02F]
7402027 Rotating group of a hydraulic machineFeb 11, 04Jul 22, 08[F04B]

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Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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