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Forward Citations = 160

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11 inventors (with patents filed for the assignee):

Gary M Sich (2 out of 30 patents)

Giuseppe Sammartino (2 out of 7 patents)

John M Sprainis (1 out of 2 patents)

4. Ronald J Sprainis (1 out of 13 patents)

5. Peter Paul Gregar (1 out of 20 patents)

6. Brian L Cunkelman (1 out of 30 patents)

7. Walter E Goettel (1 out of 17 patents)

8. James M Varney (1 out of 8 patents)

9. Hans Glista (1 out of 2 patents)

10. Clive B Wright (1 out of 2 patents)

11. Dwight D Curtis (1 out of 2 patents)

8 patents: Sort by Forward Citations

1. 8672151 - Elastomeric draft gear for a railcar (2014-03-18),

2. 8136457 - Side bearing for a railroad car truck (2012-03-20),

3. 8136456 - Friction wedge for railroad car truck (2012-03-20),

4. 6782044 - Radio interference detection and screening system for locomotive control unit radios (2004-08-24),

5. 6447267 - Locomotive air compressor with motor supported by outside bearing (2002-09-10),

6. 6422531 - ECP manifold valve inserts (2002-07-23),

7. 6416034 - ECP manifold vent valve insert (2002-07-09),

8. 6081769 - Method and apparatus for determining the overall length of a train (2000-06-27),

Wabtec Corporation is a leading supplier of equipment and services to the global rail industry. The company designs, manufactures, and services high-tech products for locomotives, freight cars, passenger transit vehicles, and more. With a focus on innovation and sustainability, Wabtec helps rail operators improve safety, efficiency, and reliability.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

8 Patents

#4 in Wilmerding, PA

#1,282 in Pennsylvania

#34,852 in US

Wilmerding, PA, United States of America

Wabtec Corporation