CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 3282
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 274
 
  
 
B61C LOCOMOTIVES; MOTOR RAILCARS 214
 
  
 
B61G COUPLINGS SPECIALLY ADAPTED FOR RAILWAY VEHICLES; DRAUGHT OR BUFFING APPLIANCES SPECIALLY ADAPTED FOR RAILWAY VEHICLES216
 
  
 
B61H BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES; ARRANGEMENTS OR DIS-POSITIONS OF BRAKES OR OTHER RETARDING APPARATUS IN RAIL VEHICLES 214
 
  
 
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
 
  
 
G01L MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE 254
 
  
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR265
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 299
 
  
 
B60T VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL 172

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0058,534 NONLINEAR AUXILIARY SPRING, NEW-BELTED DIAPHRAGM AND AIR SPRINGNov 06, 17Mar 01, 18[B61F, F16F]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9828009 Hand brakeMay 17, 16Nov 28, 17[B61H, B60T, G05G]
9809118 System and method for parallel power supply control for auxiliary converters of motor train unit in presence of interconnecting linesJun 09, 14Nov 07, 17[H02J, H02M, B60L, H05K]
9677959 Testing device for electromagnetic attraction force of a magnetic track brakeMay 20, 15Jun 13, 17[G01M, G01L]
9669732 Traction control system for electric multiple unitsMay 20, 15Jun 06, 17[H04L, G05B, H02P, G06F, B60L]
9616904 Telescopic mechanism in telescopic hitch buffer device for use in high speed electric multiple unitsAug 27, 14Apr 11, 17[B61G]
9545934 Balancing apparatus for a transition couplerJan 08, 16Jan 17, 17[B61G]
9540221 Self-adjusting supporting headJun 08, 16Jan 10, 17[B61F, B66F]
9527708 Segmented inverting cover plate apparatus for underfloor vehicle lifting jackAug 28, 15Dec 27, 16[B66F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0152,423 MOVABLE LOADING MACHINE WITH A TWIN TELESCOPIC BOOM STRUCTUREAbandonedFeb 05, 16Jun 02, 16[B65G]
2016/0115,727 OPENING/CLOSING MECHANISM EQUIPPED WITH A SELF-LOCK DEVICEAbandonedJan 08, 16Apr 28, 16[E06B, B61C, E05F]
2015/0128,500 SEGMENTED INVERTING COVER PLATE APPARATUS FOR UNDERFLOOR VEHICLE LIFTING JACKAbandonedMay 13, 13May 14, 15[B66F, E02D]

Top Inventors for This Owner

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