Transportation Technology Center, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61L GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC 224
 
  
 
C22C ALLOYS 270
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 2204
 
  
 
B61K OTHER AUXILIARY EQUIPMENT FOR RAILWAYS 112
 
  
 
E01B PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS 121
 
  
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR166
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0304,104 SYSTEM FOR INSPECTING RAIL WITH PHASED ARRAY ULTRASONICSApr 14, 16Oct 20, 16[B61K, G01N]
2016/0305,915 SYSTEM FOR INSPECTING RAIL WITH PHASED ARRAY ULTRASONICSApr 14, 16Oct 20, 16[G01N]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9162691 System and method for detecting broken rail and occupied track from a railway vehicleApr 24, 13Oct 20, 15[B61L]
9102341 Method for detecting the extent of clear, intact track near a railway vehicleJun 13, 13Aug 11, 15[B61L]
7871015 Rail joint assembly using embedded load transfer keys and method thereforOct 13, 08Jan 18, 11[E01B]
6862503 Wheel-railhead force measurement system and method having cross-talk removedNov 05, 03Mar 01, 05[G06F]
5492002 Instrumented wheelset systemFeb 08, 95Feb 20, 96[G01M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0189,047 RAILROAD RAIL STEELS RESISTANT TO ROLLING CONTACT FATIGUEAbandonedFeb 02, 10Aug 04, 11[C22C]
7591909 Railroad wheel steels having improved resistance to rolling contact fatigueExpiredDec 15, 08Sep 22, 09[B60B, C22C]
7559999 Railroad wheel steels having improved resistance to rolling contact fatigueExpiredAug 23, 07Jul 14, 09[B60B, C22C]
2009/0053,095 RAILROAD STEELS HAVING IMPROVED RESISTANCE TO ROLLING CONTACT FATIGUEAbandonedAug 23, 07Feb 26, 09[B61B, C22C]
2006/0201,253 System for non-contact interrogation of railroad axles using laser-based ultrasonic inspectionAbandonedMar 13, 06Sep 14, 06[G01N]
6768298 Transverse crack detection in rail head using low frequency eddy currentsExpiredJul 17, 01Jul 27, 04[B61K, G01N]
6675077 Wheel-railhead force measurement system and method having cross-talk removedExpiredApr 24, 02Jan 06, 04[G06F]
6632297 Railway wheels resistant to martensite transformationExpiredApr 17, 02Oct 14, 03[C22C]
6387191 Railway wheels resistant to martensite transformationExpiredJul 21, 00May 14, 02[C22C]
6381521 Dynamic angle of attack measurement system and method thereforExpiredOct 11, 00Apr 30, 02[B61L]
6062090 Apparatus and method for determining the strength and type of soilExpiredSep 23, 97May 16, 00[G01N]

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