NORFOLK SOUTHERN CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61C LOCOMOTIVES; MOTOR RAILCARS 412
 
  
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR364
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 254
 
  
 
B25B TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING242
 
  
 
B61L GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC 224
 
  
 
E01B PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS 220
 
  
 
F01P COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES 238
 
  
 
B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL120
 
  
 
B21J FORGING; HAMMERING; PRESSING; RIVETING; FORGE FURNACES 119
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 175

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9377378 Power assembly test stand system and methodMay 30, 14Jun 28, 16[G01M]
9364928 Tool and method for removing sweeper bristles from a railway track broomApr 11, 13Jun 14, 16[A46B, E01H, B23P, B25B]
9366176 Split cooling method and apparatusNov 06, 13Jun 14, 16[F01P, F02B]
9321137 Tool and method for seating engine pistonsJul 08, 13Apr 26, 16[B23P, B25B, B21J]
9302682 Multiple compressor system and method for locomotivesApr 26, 11Apr 05, 16[B61C, F02D]
9255518 System and method for an aftercooler bypassOct 24, 13Feb 09, 16[F01P, F02B]
9238474 Run-through switch rodsJun 20, 13Jan 19, 16[B61L]
9171345 System and method for terminal capacity managementFeb 15, 13Oct 27, 15[G06Q, G06F]
8875556 Railroad spikes and methods of making the sameFeb 12, 14Nov 04, 14[E01B]
8739617 GE evolution series power assembly test stand system and methodNov 11, 11Jun 03, 14[G01M]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8438711 Tool and method for removing sweeper bristles from a railway track broomExpiredMar 03, 10May 14, 13[B23P]
2006/0071,479 Top-mounted container door systemAbandonedSep 21, 05Apr 06, 06[E05C]
H001961 Directional reference for trailing locomotives and railroad carsExpiredApr 05, 99Jun 05, 01[B61D]
4915504 Optical rail gage/wear systemExpiredJul 01, 88Apr 10, 90[G01B]
4785994 Sliding joint for welded rail sectionsExpiredJul 13, 87Nov 22, 88[E01B]

Top Inventors for This Owner

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