For the Inventor, By the Inventor

Enter assignee name

Wilmerding, PA, United States of America

Westinghouse Air Brake Company

USPTO Granted Patents = 582

CIPO Patents = 5

Trademarks = 18

Forward Citations = 6,795

Loading Chart...

Loading Chart...

292 inventors (with patents filed for the assignee):

James E Hart (40 out of 78 patents)

Wajih Kanjo (33 out of 54 patents)

David W Daugherty, Jr (29 out of 35 patents)

4. James A Wood (24 out of 43 patents)

5. Daniel G Scott (22 out of 29 patents)

6. Vincent Ferri (20 out of 24 patents)

7. Brian L Cunkelman (20 out of 30 patents)

8. Michael G Hawryszkow (20 out of 20 patents)

9. Michael V Kazakis (18 out of 25 patents)

10. Robert D Dimsa (17 out of 20 patents)

11. Gary M Sich (16 out of 30 patents)

12. Paul J Kettle, Jr (16 out of 19 patents)

13. Richard J Mazur (16 out of 25 patents)

14. John H Hyler (15 out of 15 patents)

15. Scott Lee Natschke (13 out of 41 patents)

Core Competencies:

Compressed Air Systems

Railway Coupling Devices

Parking Brake Assembly

Brake Control Systems

Electronic Vent Valves

Brake Shoe Mounting

Hydraulic Brake Systems

Temperature Indicators

Coupling Devices

Brake Disc Wear Indicators

Grease Nozzles

Control Valves

582 patents: Sort by Forward Citations

1. 6952932 - Aftercooler bypass means for a locomotive compressed air system (2005-10-11),

2. 6761253 - Spring applied parking brake assembly (2004-07-13),

3. 6691883 - One piece liner member for use in railway coupling devices (2004-02-17),

4. 6631791 - Brake disc wear indicator (2003-10-14),

5. 6568711 - Self gapping socket weld fittings (2003-05-27),

6. 6499613 - Coupler with extended emergency release and towing feature (2002-12-31),

7. 6481722 - Gasket for pressurized fluid system (2002-11-19),

8. 6474748 - Electronic vent valve (2002-11-05),

9. 6474452 - Polymer based backing plates for railway brake shoes and disc pads (2002-11-05),

10. 6445152 - Door control system (2002-09-03),

11. 6378668 - Spring applied parking brake assembly having a manual quick release feature (2002-04-30),

12. 6360998 - Method and apparatus for controlling trains by determining a direction taken by a train through a railroad switch (2002-03-26),

13. 6340211 - Dual station air brake control (2002-01-22),

14. 6324789 - Encased overhead door operator having threadably attached mounts (2001-12-04),

15. 6321922 - Coupling shock resistant (csr) coupler (2001-11-27),

Westinghouse Air Brake Company (WABCO) is a leading provider of technology-based products and services for the global rail and transit industry. With a history dating back to 1869, WABCO has been at the forefront of innovation in train braking systems, control equipment, and related services. The company offers a comprehensive portfolio of braking, control, and automation solutions to enhance safety, efficiency, and sustainability in rail transportation.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

582 Patents

#1 in Wilmerding, PA

#31 in Pennsylvania

#810 in US

#1,624 in the World

Wilmerding, PA, United States of America

Westinghouse Air Brake Company

Forward Citations = 6,795

292 inventors:

James E Hart (40 out of 78 patents)

Wajih Kanjo (33 out of 54 patents)

David W Daugherty, Jr (29 out of 35 patents)

4. James A Wood (24 out of 43 patents)

5. Daniel G Scott (22 out of 29 patents)

Please report any incorrect information to support@idiyas.com

Loading…