B61L 1/14

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
2021/0362,756 TRAFFIC COMMUNICATION SYSTEM, BASE STATION, VEHICLE, MOBILE STATION, AND MESSAGE TRANSMISSION METHODAug 09, 21Nov 25, 21Kyocera Corporation
2020/0339,168 CONTROL SYSTEM FOR SIGNALS AT RAILROAD GRADE CROSSINGApr 22, 20Oct 29, 20AUTO TRUCK GROUP, LLC
2020/0223,458 METHOD FOR ENSURING THAT A SECTION BLOCK OF A RAILWAY SECTION IS FREE OF THE LAST UNIT OF A TRAINSep 20, 18Jul 16, 20Not available
2017/0349,191 TRAIN WIRELESS SYSTEM AND TRAIN LENGTH CALCULATION METHODJan 16, 15Dec 07, 17MITSUBISHI ELECTRIC CORPORATION
2013/0240,677 AUTOMATIC END-OF-TRAIN DETECTION SYSTEMSep 17, 12Sep 19, 13FERROVIA CENTRO-AATLANTICA S/A, FERROVIA CENTRO-ATLANTICA S/A,
2012/0248,261 COMMUNICATIONS BASED CROSSING CONTROL FOR LOCOMOTIVE-CENTRIC SYSTEMSApr 01, 11Oct 04, 12SIEMENS INDUSTRY, INC.
2011/0127,388 DEVICE FOR THE DETECTION OF THE OCCUPIED OR FREE STATE OF A TRACK SECTIONMay 13, 09Jun 02, 11SIEMENS AKTIENGESELLSCHAFT