AAA SALES & ENGINEERING, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61K OTHER AUXILIARY EQUIPMENT FOR RAILWAYS 112

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8413770 Systems and methods for retarding the speed of a railcarJan 07, 09Apr 09, 13[B61K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8365876 Air bladder actuator for railroad car retarderExpiredApr 08, 10Feb 05, 13[B61K]
2011/0251,809 INDUCTIVE LOOP PRESENCE DETECTORAbandonedOct 12, 10Oct 13, 11[G06F, G01R]
2010/0252,372 Securing Brake Shoes to Brake Beams in a Railroad Car RetarderAbandonedMar 31, 10Oct 07, 10[B61K, B61H]
7649350 Railcar presence detectorExpiredJun 05, 07Jan 19, 10[B61L, G01B]
2008/0237,511 Pneumatic Retarder Actuator ValveAbandonedOct 16, 07Oct 02, 08[F16K, G05D]
6422519 Railroad track switch operatorExpiredSep 01, 00Jul 23, 02[B61L]
6216525 Distributive retarder test deviceExpiredDec 16, 98Apr 17, 01[G01H]
4996793 Louver control apparatus for modular shutter assemblyExpiredJul 05, 90Mar 05, 91[E06B, E05F]
4967511 Modular shutter assemblyExpiredJun 21, 89Nov 06, 90[E06B, E05F]
4393960 Low noise railroad retarder brake shoe structureExpiredJan 21, 81Jul 19, 83[B61K]

Top Inventors for This Owner

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