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
 
  
 
B61G COUPLINGS SPECIALLY ADAPTED FOR RAILWAY VEHICLES; DRAUGHT OR BUFFING APPLIANCES SPECIALLY ADAPTED FOR RAILWAY VEHICLES216
 
  
 
B61K OTHER AUXILIARY EQUIPMENT FOR RAILWAYS 112
 
  
 
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 122
 
  
 
F16H GEARING199
 
  
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR166

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0114,921 FRONT INSTALLED SUSPENSION SYSTEM HAVING OVERLOAD PROTECTION FIELD OF THE INVENTIONMay 06, 12Apr 30, 15[B61G]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9919721 Front suspension system having overload protectionMay 06, 13Mar 20, 18[B61G]
9016209 Transverse adjustment mechanism for bilateral half-spring type load-carrying headJun 10, 13Apr 28, 15[B61K, B66F, F16H]
8418862 Semi-permanent vehicle coupler for light railJun 29, 11Apr 16, 13[B61G]
8230730 Comprehensive test bed for vehicle bodyJun 28, 11Jul 31, 12[G01M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0255,017 ON-BOARD TV ON RAILWAY VEHICLEAbandonedJun 28, 11Oct 20, 11[H04N]

Top Inventors for This Owner

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