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Siemens Electric Limited

USPTO Granted Patents = 62

Forward Citations = 1,416

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50 inventors (with patents filed for the assignee):

John E Cook (15 out of 124 patents)

Paul Douglas Perry (10 out of 87 patents)

Marek Horski (7 out of 30 patents)

4. Bernard J Hrytzak (6 out of 11 patents)

5. Gary Michael Everingham (6 out of 33 patents)

6. Hirotomi Nemoto (4 out of 43 patents)

7. Murray F Busato (4 out of 33 patents)

8. Yoshio Yamamoto (4 out of 19 patents)

9. Takeshi Gomi (4 out of 7 patents)

10. Robert Doudon (4 out of 4 patents)

11. Andrew Lakerdas (3 out of 35 patents)

12. Ian R McLean (3 out of 12 patents)

13. Eric Raymond Bartlett (3 out of 9 patents)

14. Jerzy Muszynski (3 out of 7 patents)

15. Stephen E Brackett (3 out of 12 patents)

Core Competencies:

Active Noise Control

Engine Noise Reduction

Air Induction Tuning

EGR Valve

Brushless Motor

Cooling Fan

Vapor Detection

Electromagnetic Actuator

Throttle Control

Integrated Fuel System

62 patents: Sort by Forward Citations

1. 6106228 - Fan shroud air door assembly (2000-08-22),

2. 6084971 - Active noise attenuation system (2000-07-04),

3. 5911401 - Electric actuated exhaust gas recirculation valve (1999-06-15),

4. 5898988 - Method of making a brushless motor with inside mounted single bearing (1999-05-04),

5. 5877573 - D.C. motor and reversing circuit (1999-03-02),

6. 5871335 - Twist-lock attachment system for a cooling fan and motor (1999-02-16),

7. 5865863 - Combined air cleaner-resonator (1999-02-02),

8. 5860400 - Intake-exhaust manifold bridge noise attenuation system and method (1999-01-19),

9. 5845612 - Total cooling assembley for I. C. engine-powered vehicles (1998-12-08),

10. 5844338 - Slim-line brushless motor with inside mounted single bearing (1998-12-01),

11. 5828759 - System and method for reducing engine noise (1998-10-27),

12. 5817925 - Evaporative emission leak detection system (1998-10-06),

13. 5814908 - Blower wheel with axial inlet for ventilation (1998-09-29),

14. 5813375 - Method and system for distributing vapors or gases to each cylinder of a (1998-09-29),

15. 5811898 - Rotary actuator (1998-09-22),

Company Overview

Siemens Electric Limited, based in London, CA, specializes in advanced noise attenuation systems, focusing on technologies that enhance acoustic performance in various applications. The company is known for its innovations in active noise control, engine noise reduction, and air induction tuning, contributing significantly to automotive and industrial sectors. Their expertise extends to the development of components such as EGR valves, brushless motors, cooling fans, and electromagnetic actuators, aimed at improving efficiency and performance in complex systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

62 Patents

#4 in London

#217 in Canada

#11,768 in the World

Siemens Electric Limited

Forward Citations = 1,416

50 inventors:

John E Cook (15 out of 124 patents)

Paul Douglas Perry (10 out of 87 patents)

Marek Horski (7 out of 30 patents)

4. Bernard J Hrytzak (6 out of 11 patents)

5. Gary Michael Everingham (6 out of 33 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Siemens Electric Limited. Retrieved from https://idiyas.com/company/siemens-electric

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]

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