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Total properties:
64
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Patent #:
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Issue Dt:
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08/06/1985
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Application #:
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06291409
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Filing Dt:
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08/10/1981
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Title:
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RANGE-ENABLE INFORMATION SYSTEM FOR PLURAL MOBIL OBJECTS
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Patent #:
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Issue Dt:
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12/24/1985
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Application #:
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06493915
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Filing Dt:
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05/12/1983
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Title:
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Patent #:
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Issue Dt:
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12/24/1985
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Application #:
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06642453
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Filing Dt:
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08/20/1984
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Title:
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FAIL-SAFE SQUARE-WAVE OSCILLATOR
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Patent #:
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Issue Dt:
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04/28/1987
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Application #:
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06651731
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Filing Dt:
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09/17/1984
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Title:
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FAIL-SAFE PULSE COINCIDENCE DETECTOR
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Patent #:
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Issue Dt:
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02/24/1987
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Application #:
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06735017
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Filing Dt:
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05/16/1985
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Title:
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FAIL-SAFE VOLTAGE-LIMITING CIRCUIT FOR AN AUDIO FREQUENCY OVERLAY TRACK CIRCUIT
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Patent #:
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Issue Dt:
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03/24/1987
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Application #:
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06826949
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Filing Dt:
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04/07/1986
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Title:
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VITAL INVERTER DRIVER
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Patent #:
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Issue Dt:
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11/17/1987
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Application #:
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06919414
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Filing Dt:
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10/16/1986
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Title:
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IRREVERSIBLE FREE WHEELING CLUTCH
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Patent #:
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Issue Dt:
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01/05/1993
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Application #:
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07200323
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Filing Dt:
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05/31/1988
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Title:
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EQUIPMENT MOUNTING ASSEMBLY FOR RAILROAD CAR COUPLERS
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Patent #:
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Issue Dt:
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09/08/1992
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Application #:
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07676093
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Filing Dt:
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03/27/1991
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Title:
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MASTER-SATELLITE RAILWAY TRACK CIRCUIT
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Patent #:
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Issue Dt:
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06/15/1993
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Application #:
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07841387
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Filing Dt:
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02/25/1992
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Title:
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SINGLE-ELEMENT CODED ALTERNATING CURRENT RAILWAY TRACK CIRCUIT HAVING DOUBLE-ELEMENT, PHASE-SELECTIVE CAPABILITY
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Patent #:
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Issue Dt:
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07/19/1994
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Application #:
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07882605
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Filing Dt:
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05/13/1992
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Title:
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RAILWAY CAB SIGNAL
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Patent #:
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Issue Dt:
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03/21/1995
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Application #:
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08104875
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Filing Dt:
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08/10/1993
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Title:
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VIRTUAL BLOCK CONTROL SYSTEM FOR RAILWAY VEHICLE
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Patent #:
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Issue Dt:
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10/17/1995
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Application #:
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08165094
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Filing Dt:
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12/10/1993
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Title:
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CAB SIGNAL APPARATUS AND METHOD
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Patent #:
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Issue Dt:
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11/14/1995
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Application #:
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08260537
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Filing Dt:
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06/16/1994
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Title:
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Patent #:
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Issue Dt:
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01/23/1996
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Application #:
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08312536
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Filing Dt:
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09/26/1994
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Title:
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REDUCED HARMONIC SWITCHING MODE APPARATUS AND METHOD FOR RAILROAD VEHICLE SIGNALING
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Patent #:
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Issue Dt:
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06/18/1996
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Application #:
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08339763
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Filing Dt:
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11/15/1994
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Title:
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SWING NOSE FROG SWITCH POINT ADJUSTER
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Patent #:
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Issue Dt:
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11/04/1997
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Application #:
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08438350
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Filing Dt:
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05/10/1995
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Title:
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BRAKE PIPE PNEUMATIC VALVE
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Patent #:
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Issue Dt:
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04/16/1996
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Application #:
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08449776
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Filing Dt:
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05/24/1995
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Title:
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REDUCED HARMONIC SWITCHING MODE APPARATUS AND METHOD FOR RAILROAD VEHICLE SIGNALING
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Patent #:
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Issue Dt:
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04/07/1998
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08500571
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Filing Dt:
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07/11/1995
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Title:
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Patent #:
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Issue Dt:
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05/05/1998
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08632941
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Filing Dt:
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04/16/1996
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Title:
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CAR SPACE MEASUREMENT APPARATUS
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Patent #:
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Issue Dt:
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08/19/1997
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08694733
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Filing Dt:
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08/09/1996
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Title:
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DECELEROMETER
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Patent #:
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Issue Dt:
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10/20/1998
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08726526
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Filing Dt:
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10/07/1996
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Title:
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METHOD OF TRANSFERRING CONTROL OF A RAILWAY VEHICLE IN A COMMUNICATION BASED SIGNALING SYSTEM
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Patent #:
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Issue Dt:
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07/28/1998
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08756322
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Filing Dt:
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11/25/1996
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Title:
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SYSTEM AND METHOD FOR COMMUNICATING OPERATIONAL STATUS OF A RAILWAY WAYSIDE TO A LOCOMOTIVE CAB
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Patent #:
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Issue Dt:
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05/16/2000
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Application #:
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09120610
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Filing Dt:
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07/22/1998
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Title:
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RAILWAY SWITCH CIRCUIT CONTROLLER
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Patent #:
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Issue Dt:
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03/07/2000
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09134139
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08/14/1998
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Title:
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SYSTEM FOR DISTRIBUTED AUTOMATIC TRAIN SUPERVISION AND CONTROL
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Patent #:
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11/21/2000
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09146513
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Filing Dt:
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09/03/1998
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Title:
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RAILROAD SWITCH POINT POSITION INDICATOR
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Patent #:
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Issue Dt:
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02/13/2001
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Application #:
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09149195
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Filing Dt:
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09/08/1998
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Title:
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CAPTIVITY POINT DETECTION SYSTEM WITH SINGLE SWITCH POSITION TARGET
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Patent #:
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Issue Dt:
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10/31/2000
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Application #:
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09167106
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Filing Dt:
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10/06/1998
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Title:
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LOW PROFILE SWITCH MACHINE GEAR BOX.
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Patent #:
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07/10/2001
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09351535
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07/12/1999
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Title:
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PROGRAMMABLE RELAY DRIVER
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Patent #:
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10/02/2001
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09382439
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08/25/1999
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Title:
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RAILWAY SWITCH MACHINE POINT DETECTION SYSTEM
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Patent #:
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04/17/2001
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09410806
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10/01/1999
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CROSSING GUARD MAINTENANCE SYSTEM AND ASSOCIATED METHOD
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Patent #:
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10/09/2001
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09490306
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01/24/2000
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Title:
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Motor control apparatus for a railway switch machine
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Patent #:
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04/02/2002
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09490976
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01/24/2000
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Title:
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Railway switch machine motor control apparatus
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Patent #:
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10/09/2001
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09502386
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02/11/2000
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11/05/2002
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09934754
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08/22/2001
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POINT DETECTOR SLEEVE FOR RAILROAD SWITCH MACHINE AND ASSOCIATED METHOD
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05/07/2002
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09935978
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08/23/2001
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12/27/2001
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Title:
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RAILWAY SWITCH MACHINE POINT DETECTION SYSTEM
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11/26/2002
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09951141
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09/10/2001
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CONTROLLER FOR SWITCH MACHINE
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08/27/2002
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09955347
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09/18/2001
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PASSIVE DETECTION SYSTEM FOR LEVITATED VEHICLE OR LEVITATED VEHICLE SYSTEM
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10/29/2002
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09973658
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10/09/2001
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06/17/2003
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10006506
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12/06/2001
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06/12/2003
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MODULAR POINT DETECTOR FOR RAILROAD TRACK SIGNAL
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12/17/2002
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10068719
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02/06/2002
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11/18/2003
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10135858
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04/30/2002
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10/30/2003
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DROP DOWN LUG FOR RAILROAD SWITCH APPLICATION
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12/16/2003
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10334592
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12/30/2002
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MODULAR POINT DETECTOR FOR RAILROAD TRACK SIGNAL
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07/01/2003
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10334618
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12/30/2002
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MODULAR POINT DETECTOR FOR RAILROAD TRACK SWITCH
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02/10/2004
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10334889
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12/30/2002
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MODULAR POINT DETECTOR FOR RAILROAD TRACK SWITCH
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10/14/2008
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10526951
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03/08/2005
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07/19/2007
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06/10/2008
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06/07/2005
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04/06/2006
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12/16/2008
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10/27/2005
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11/09/2006
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METHOD AND SYSTEM PROVIDING SLEEP AND WAKE-UP MODES FOR RAILWAY TRACK CIRCUIT UNIT
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01/30/2007
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07/07/2003
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07/01/2008
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02/27/2004
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09/01/2005
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GEOGRAPHIC INFORMATION SYSTEM AND METHOD FOR MONITORING DYNAMIC TRAIN POSITIONS
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04/03/2007
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04/18/2005
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11/20/2007
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05/24/2005
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11/30/2006
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ELECTRONIC VITAL RELAY
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11/07/2005
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05/10/2007
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09/01/2009
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11/15/2007
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SIGNAL APPARATUS, LIGHT EMITTING DIODE (LED) DRIVE CIRCUIT, LED DISPLAY CIRCUIT, AND DISPLAY SYSTEM INCLUDING THE SAME
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06/30/2009
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05/25/2006
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11/29/2007
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LIGHT EMITTING DIODE SIGNALING DEVICE AND METHOD OF PROVIDING AN INDICATION USING THE SAME
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NONE
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10/23/2006
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04/24/2008
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04/24/2008
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04/24/2008
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11/08/2007
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05/14/2009
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06/21/2011
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02/15/2008
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08/20/2009
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06/02/2009
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03/04/2008
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07/03/2008
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GEOGRAPHIC INFORMATION SYSTEM AND METHOD FOR MONITORING DYNAMIC TRAIN POSITIONS
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12/14/2010
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09/17/2009
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01/08/2013
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12/17/2009
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Title:
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RAILROAD SWITCH MACHINE
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