TANGSHAN RAILWAY VEHICLE CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B23C MILLING 132
 
  
 
B60N VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR 161
 
  
 
B61D BODY DETAILS OR KINDS OF RAILWAY VEHICLES 125
 
  
 
B61F RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES, ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING; WHEELS GUARDS; OBSTRUCTION REMOVERS OR THE LIKE 121
 
  
 
E05D HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS, OR WINGS 133

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9409580 Obstacle removing and energy absorbing device and leading car of motor train unitJun 16, 14Aug 09, 16[B61F, B61D]
8522692 Sleeper compartment of a railroad passenger carJun 29, 11Sep 03, 13[B60N]
8523156 Positioning and pressing device, pressing device and tool for auxiliary machining of motor train underframeJun 30, 11Sep 03, 13[B23C]
8302349 Rescue passage window for passenger trainJun 30, 11Nov 06, 12[E05D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0087,068 DRIVER'S CAB OF MAGNETICALLY LEVITATED TRAIN AND MANUFACTURING METHOD THEREOFAbandonedDec 03, 12Apr 11, 13[B23P, B61D]
2011/0290,416 METHOD FOR IMPROVING THE FIREPROOFING PERFORMANCE OF VEHICLE BODYAbandonedJun 30, 11Dec 01, 11[G06F, B32B]
2011/0266,267 OVERLAPPING METHOD OF A WELDING GROOVE, A TWIN WIRE WELDING METHOD AND A SYSTEM THEREOFAbandonedJun 30, 11Nov 03, 11[B23K]
2011/0259,942 WELDING METHOD OF BUTTED PROFILEAbandonedJun 30, 11Oct 27, 11[B23K]
2011/0264,591 METHOD AND PLATFORM FOR INTEGRATING A HETEROGENEOUS WORKGROUP COLLABORATIVE DESIGN SYSTEM AND A PLM SYSTEMAbandonedJun 30, 11Oct 27, 11[G06Q]
2011/0253,002 DRAG REDUCTION DEVICE BETWEEN CARRIAGES OF HIGH-SPEED MULTIPLE UNITSAbandonedJun 29, 11Oct 20, 11[B61D]

Top Inventors for This Owner

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