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For the Inventor, By the Inventor

Wilmerding, PA, United States of America

Wabtec Holding Corporation


USPTO Granted Patents = 192

% Expired Patents = 21.9



Trademarks = 23

Forward Citations = 935

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157 inventors (with patents filed for the assignee):

goldMedal Michael E Ring (30 out of 71 patents)

silverMedal Howard R Sommerfeld (28 out of 44 patents)

bronzeMedal Jonathon Marlow (16 out of 17 patents)

4.  Bradley Anderson (14 out of 14 patents)

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

6.  Ronald J Sprainis (11 out of 13 patents)

7.  Peter Paul Gregar (11 out of 20 patents)

8.  Wajih Kanjo (11 out of 54 patents)

9.  Jeffrey Donald Kernwein (11 out of 60 patents)

10.  David J Meyer (10 out of 10 patents)

11.  Brian E Kurz (8 out of 22 patents)

12.  Carl L Haas (8 out of 27 patents)

13.  Robert N Scharpf (8 out of 10 patents)

14.  Edward W Gaughan (7 out of 35 patents)

15.  Gary M Sich (7 out of 30 patents)


Core Competencies:
Vehicle Control Systems
Data Recorder
Braking Systems
Brake Calibration
Railway Safety
Heat Exchanger
Fault Detection
Pneumatic Systems
Coupler Mechanisms
Event Data Protection
Dynamic Braking
Brush Holder Assemblies

192 patents:

1. 11827259 - Method and system for transmitting enforceable instructions in vehicle control systems (2023-11-28),
2. 11749034 - Data recorder system and unit for a vehicle (2023-09-05),
3. 11502468 - Methods for mounting and replacing brushes (2022-11-15),
4. 11030834 - Data recorder system and unit for a vehicle (2021-06-08),
5. 10919551 - Method and system for transmitting enforceable instructions in vehicle control systems (2021-02-16),
6. 10556574 - Brake cylinder maintaining valve (2020-02-11),
7. 10435004 - ABDW to ABDX-R control valve conversion (2019-10-08),
8. 10270216 - Brush holder assemblies and methods for mounting and replacing brushes (2019-04-23),
9. 10198882 - Data recorder system and unit for a vehicle (2019-02-05),
10. 10140790 - Data recorder system and unit for a vehicle (2018-11-27),
11. 10113801 - Multi-fluid heat exchanger arrangement (2018-10-30),
12. 10094729 - System, method, and apparatus for certifying a brake pressure calibration for an end-of-train device (2018-10-09),
13. 10081379 - Broken rail detection system for communications-based train control (2018-09-25),
14. 10081378 - Method and system for transmitting enforceable instructions in positive train control systems (2018-09-25),
15. 10077033 - Braking systems and methods for determining dynamic braking data for a braking model for a train (2018-09-18),
Wabtec Holding Corporation, headquartered in Wilmerding, PA, specializes in railway vehicle technology, focusing on enhancing the safety and efficiency of rail systems. The company develops and manufactures advanced vehicle control systems, braking systems, and data recorders, alongside solutions for brake calibration and fault detection. With a commitment to innovation, Wabtec plays a crucial role in the railway industry, addressing critical needs such as pneumatic systems and heat exchangers, thereby contributing to improved operational reliability and safety standards.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Wabtec Holding Corporation
192 Patents

#2 in Wilmerding, PA

#90 in Pennsylvania

#2,141 in US

#4,382 in the World

Wilmerding, PA (US)
Wilmerding, PA, United States of America

Wabtec Holding Corporation

Forward Citations = 935

157 inventors:

goldMedal Michael E Ring (30 out of 71 patents)

silverMedal Howard R Sommerfeld (28 out of 44 patents)

bronzeMedal Jonathon Marlow (16 out of 17 patents)

4.  Bradley Anderson (14 out of 14 patents)

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

Please report any incorrect information to [email protected]
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