CALBRANDT, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61J SHIFTING OR SHUNTING OF RAIL VEHICLES 42
 
  
 
B61D BODY DETAILS OR KINDS OF RAILWAY VEHICLES 125

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9701324 Railcar positioning system for curved trackFeb 05, 15Jul 11, 17[B61J]
9272719 Ratcheting railcar indexerSep 23, 13Mar 01, 16[B61J]
8479660 Automated railcar gate operating systemMay 25, 11Jul 09, 13[B61D]
7934457 Railcar positioning systemApr 13, 09May 03, 11[B61J]
6837168 Indexer with self-powered carriageJul 08, 03Jan 04, 05[B61J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0261,056 Tandem Carriage Railcar IndexerAbandonedMar 12, 13Sep 18, 14[B61J]
8250991 Automated railcar gate operating systemExpiredJan 29, 10Aug 28, 12[B61D]
2011/0186,758 Hydraulic Motor With Non-Contact Encoder SystemAbandonedFeb 01, 10Aug 04, 11[F16K, B23P]
7464651 Bogey frame sensor for railcar moverExpiredApr 27, 06Dec 16, 08[B61B]
7377219 Spike-type railcar mover with optional gate openerExpiredFeb 03, 06May 27, 08[B61J]
6748841 Railroad hopper car gate operating systemExpiredDec 16, 02Jun 15, 04[B25B]
6668730 Indexer carriage chain tension and dog control systemExpiredJan 22, 02Dec 30, 03[B61J]
6553916 Car spotter driveExpiredJul 12, 01Apr 29, 03[B61B]
6389984 Independent dog operating systemExpiredApr 11, 00May 21, 02[B61J]
6267059 Low clearance train positionerExpiredApr 11, 00Jul 31, 01[B65G]
6006673 Cylinder type rail car indexerExpiredApr 29, 98Dec 28, 99[B61B]
5709153 High dog indexerExpiredDec 29, 95Jan 20, 98[B61J]

Top Inventors for This Owner

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