|
Total properties:
16
|
|
|
|
Patent #:
|
|
Issue Dt:
|
|
Application #:
|
05942365
|
Filing Dt:
|
|
|
Title:
|
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
01/25/1983
|
Application #:
|
06021695
|
Filing Dt:
|
03/19/1979
|
|
Title:
|
SIGNAL CONTROL SYSTEM
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
11/03/1981
|
Application #:
|
06088841
|
Filing Dt:
|
10/29/1979
|
|
Title:
|
RAIL HANDLING TONGS
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
11/15/1983
|
Application #:
|
06344618
|
Filing Dt:
|
02/01/1982
|
|
Title:
|
HALL EFFECT TRACK CIRCUIT RECEIVING ELEMENT
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
11/22/1983
|
Application #:
|
06375393
|
Filing Dt:
|
05/06/1982
|
|
Title:
|
MEANS FOR USE ON A RAILROAD TO DISTINGUISH BETWEEN TRACTION CURRENT AND SIGNAL CURRENT
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
04/02/1985
|
Application #:
|
06461105
|
Filing Dt:
|
01/26/1983
|
|
Title:
|
IMPEDANCE BOND
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
10/27/1987
|
Application #:
|
06848761
|
Filing Dt:
|
04/07/1986
|
|
Title:
|
SOLID STATE RAILROAD LIGHTS/GATE CONTROLLER
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
01/23/1990
|
Application #:
|
07269296
|
Filing Dt:
|
11/10/1988
|
|
Title:
|
RAILROAD GATE ARM LAMP CIRCUIT
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
06/11/1991
|
Application #:
|
07514980
|
Filing Dt:
|
04/26/1990
|
|
Title:
|
AC AND BATTERY BACKUP SUPPLY FOR A RAILROAD CROSSING GATE
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
07/09/1991
|
Application #:
|
07522667
|
Filing Dt:
|
05/14/1990
|
|
Title:
|
MULTI-FREQUENCY RAILROAD GRADE CROSSING TERMINATION SHUNT ASSEMBLY
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
09/19/1995
|
Application #:
|
07945236
|
Filing Dt:
|
09/15/1992
|
|
Title:
|
TEMPERATURE COMPENSATED, REGULATED POWER SUPPLY AND BATTERY CHARGER FOR RAILROAD SIGNAL USE
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
05/12/1998
|
Application #:
|
08617469
|
Filing Dt:
|
03/15/1996
|
|
Title:
|
GEOGRAPHIC TRAIN CONTROL
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
04/07/1998
|
Application #:
|
08655700
|
Filing Dt:
|
06/03/1996
|
|
Title:
|
RAILROAD TRACK CIRCUIT VITAL RELAY CONTROL
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
11/10/1998
|
Application #:
|
08924897
|
Filing Dt:
|
09/08/1997
|
|
Title:
|
RAILROAD CROSSING GATE MECHANISM CONTROL SYSTEM
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
12/22/1998
|
Application #:
|
08994386
|
Filing Dt:
|
12/19/1997
|
|
Title:
|
RAILROAD CROSSING GATE CONTROL SYSTEM INCLUDING A SEPARATE MAINTENANCE RELAY
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
10/08/2002
|
Application #:
|
09467796
|
Filing Dt:
|
12/20/1999
|
|
Title:
|
RAILROAD VITAL SIGNAL OUTPUT MODULE WITH CRYPTOGRAPHIC SAFE DRIVE
|
|
