Forward Citations = 163

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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),

Company Overview

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.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

8 Patents

#3 in Wilmerding, PA

#1,305 in Pennsylvania

#35,941 in US

Wilmerding, PA, United States of America

Wabtec Corporation

Forward Citations = 163

11 inventors:

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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Wabtec Corporation. Retrieved from https://idiyas.com/company/wabtec

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]