IP Library › Assignment 004915/0677
Patent Assignment
Reel/Frame 004915/0677

Assignment of Assignors Interest.

Recorded: 1988-08-10 Pages: 16
Assignor
Assignee
Covered Properties (66)
Automatic Car Identification System
Patent: 3,617,707 →
Application: 04/661,468 →
Train Detection System for Railroad Grade
Patent: 3,725,699 →
Application: 05/107,656 →
Train Speed Control System
Patent: 3,794,833 →
Application: 05/256,888 →
Fail-Safe Electronic Time Delay Circuit
Patent: 4,044,272 →
Application: 05/713,995 →
Wayside Signaling System for Railroad Cab Signals and Speed Control
Patent: 4,046,342 →
Application: 05/719,337 →
Speed Control Apparatus and Method for Railroad Car Retarders
Patent: 4,235,403 →
Application: 06/032,046 →
Protective Electrical Discharge Device
Patent: 4,237,515 →
Application: 06/021,521 →
Protective Electrical Discharge Device
Patent: 4,237,516 →
Application: 06/021,522 →
Pulse Interpolation Method and Apparatus
Patent: 4,238,831 →
Application: 05/939,023 →
Highway Crossing Bell Apparatus
Patent: 4,255,744 →
Application: 06/047,532 →
Vital Voltage Regulator and Phase Shift Circuit Arrangement
Patent: 4,258,312 →
Application: 06/031,885 →
Vital Incidental Movement Monitoring Arrangement
Patent: 4,297,548 →
Application: 06/105,354 →
Vital Cross Field Transformer Circuit Arrangement for Railroad Signaling Systems
Patent: 4,298,179 →
Application: 06/044,124 →
Electronic Overload Protection Circuit
Patent: 4,301,490 →
Application: 06/055,864 →
Dual Signal Frequency Motion Monitor and Broken Rail Detector
Patent: 4,306,694 →
Application: 06/162,470 →
Non-Linear Filter
Patent: 4,306,695 →
Application: 06/055,590 →
Railroad Grade Crossing Constant Warning Protection System
Patent: 4,307,860 →
Application: 06/062,090 →
Test Set for Railway Cab Signal System
Patent: 4,314,234 →
Application: 06/103,885 →
Fail-Safe Acknowledging Circuit
Patent: 4,314,237 →
Application: 06/153,493 →
Signal-Powered Receiver
Patent: 4,314,306 →
Application: 06/168,861 →
High Power Audio Frequency Transmitter
Patent: 4,314,374 →
Application: 05/850,177 →
Regulated Power Supply Having Its D.C. Voltage Source Selectively Supplemented by a D.C. to D.C. Converter
Patent: 4,315,208 →
Application: 06/167,857 →
Sequential Logic Element
Patent: 4,320,314 →
Application: 06/104,549 →
Fail-Safe Band-Pass Circuit
Patent: 4,320,354 →
Application: 06/097,264 →
Fail-Safe Decoder for Digital Track Circuits
Patent: 4,320,881 →
Application: 06/193,765 →
Manual Block Traffic Control and Signaling System for Railroads
Patent: 4,323,210 →
Application: 06/183,906 →
Railroad Highway Crossing Warning System
Patent: 4,324,376 →
Application: 06/162,471 →
Vital Electronic Time Delay Circuit
Patent: 4,325,101 →
Application: 06/106,971 →
Shelf Mount for Vital Plug-in Relay
Patent: 4,326,693 →
Application: 06/103,899 →
Fail-Safe Digital Comparator
Patent: 4,328,541 →
Application: 06/152,884 →
Fail-Safe Low-Pass Filtering Circuit
Patent: 4,368,440 →
Application: 06/199,779 →
Fail-Safe Magnetic Sensing Arrangement
Patent: 4,368,862 →
Application: 06/219,282 →
Vital Vehicle Movement Detector
Patent: 4,384,250 →
Application: 06/253,439 →
Vital Protection Arrangement for Railroad Track Circuits
Patent: 4,392,626 →
Application: 06/301,619 →
Vital Lowest Speed Command Selector
Patent: 4,401,970 →
Application: 06/272,841 →
Code Reset Apparatus for Railroad Track Circuits
Patent: 4,407,470 →
Application: 06/295,197 →
Vital Dc Source Ground Fault Detector Apparatus
Patent: 4,417,202 →
Application: 06/230,146 →
Cab Signal Test Set for Automatically Testing the Pickup Coils and Amplifier of Cab Signal Equipment
Patent: 4,437,056 →
Application: 06/249,581 →
Reset Apparatus for Railroad Track Circuits
Patent: 4,437,632 →
Application: 06/352,424 →
Electronic D. C. to D. C. Power Supply
Patent: 4,462,069 →
Application: 06/293,042 →
Automatic Departure Test Unit for Cab Signal Equipment
Patent: 4,467,270 →
Application: 06/306,020 →
Static Multi-Color Light Signal
Patent: 4,488,207 →
Application: 06/524,255 →
Railroad Car Wheel Detector Using Hall Effect Element
Patent: 4,524,932 →
Application: 06/454,519 →
Vital Solid State Relay for Railroad Alternating Current Track Circuits
Patent: 4,535,959 →
Application: 06/404,182 →
Traffic Control System for Single Track Railroad
Patent: 4,550,889 →
Application: 06/397,383 →
Fail-Safe Square-Wave Oscillator
Patent: 4,560,953 →
Application: 06/642,453 →
Pulse Code System for Railroad Track Circuits
Patent: 4,619,425 →
Application: 06/284,150 →
Vital Code Generating Circuit
Patent: 4,623,850 →
Application: 06/593,777 →
Fail-Safe One and Only One Signal Checking Circuit
Patent: 4,641,045 →
Application: 06/670,243 →
Fail-Safe Voltage-Limiting Circuit for an Audio Frequency Overlay Track Circuit
Patent: 4,645,148 →
Application: 06/735,017 →
Vital Inverter Driver
Patent: 4,652,986 →
Application: 06/826,949 →
Fail-Safe Pulse Coincidence Detector
Patent: 4,661,722 →
Application: 06/651,731 →
Mounting Bracket for Railway Vehicle Couplers
Patent: 4,665,858 →
Application: 06/801,882 →
Pneumatic Pressure Actuator
Patent: 4,696,223 →
Application: 06/274,956 →
Molded Plastic Bracket for Lamp Receptacle
Patent: 4,700,278 →
Application: 06/810,623 →
Irreversible Free Wheeling Clutch
Patent: 4,706,791 →
Application: 06/919,414 →
Railway Track Circuit for Electrified Territory Including Impedance Bonds and Insulated Joints
Patent: 4,723,738 →
Application: 06/878,711 →
Synchronous Rectification Track Circuit
Patent: 4,723,739 →
Application: 06/755,525 →
Vital Safety Monitoring Circuit
Patent: 4,755,692 →
Application: 07/060,134 →
Pneumatic Coupling Having a Latching Mechanism and a Bleed-Off Valve for Attachment to an Air Brake Hose
Patent: 4,763,875 →
Application: 07/082,401 →
Equipment Mounting Assembly for Railroad Car Couplers
Patent: 5,176,350 →
Application: 07/200,323 →
Low-Profile Railway Car Retarder
Patent: 4,867,279 →
Application: 06/297,680 →
Clamp for Railroad Car Coupler
Patent: 5,131,269 →
Application: 06/593,778 →
Electronic Bipolar Interface Circuit
Patent: 4,763,017 →
Application: 06/789,900 →
Vital Switch Control Circuit
Patent: 4,756,494 →
Application: 06/826,719 →
Railroad Track Mounting Arrangement
Patent: 4,753,403 →
Application: 06/938,934 →
Related Assignments (3)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest. Oct 3, 1980
From: CAMPBELL RICHARD D.
To: AMERICAN STANDARD INC.
Reel/Frame 003822/0108 →
Assignment of Assignors Interest. Nov 4, 1981
From: PHAM, NGU T.
To: THOMSON-CSF
Reel/Frame 003922/0721 →
Merger Aug 15, 1988
From: WESTINGHOUSE AIR BRAKE COMPANY
To: AMERICAN STANDARD INC., A DE CORP.
Reel/Frame 004931/0012 →