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For the Inventor, By the Inventor

Boucherville, Canada

Tm4 Inc.


USPTO Granted Patents = 39

% Expired Patents = 17.9



Trademarks = 1

Forward Citations = 214

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45 inventors (with patents filed for the assignee):

goldMedal Martin Houle (14 out of 23 patents)

silverMedal Jean-Marc Cyr (11 out of 13 patents)

bronzeMedal Maalainine El Yacoubi (8 out of 14 patents)

4.  Pascal Fleury (7 out of 10 patents)

5.  Mohammed Amar (7 out of 9 patents)

6.  Stéphane Poulin (7 out of 7 patents)

7.  Bruno Carpentier (6 out of 6 patents)

8.  Jianhong Xu (5 out of 5 patents)

9.  Pierre Blouin (5 out of 5 patents)

10.  Louis-Philippe Bibeau (5 out of 5 patents)

11.  Ruisheng Shi (4 out of 7 patents)

12.  George Bursuc (4 out of 4 patents)

13.  Steve Fleming (4 out of 4 patents)

14.  François Messier (3 out of 9 patents)

15.  Éric Latulipe (3 out of 4 patents)


Core Competencies:
External Rotor Electric Machine
Voltage Converters
Cooling Arrangement
Permanent Magnet Rotor
Commutation Cell
Power Converter
Hybrid Drive Train
Inductance Assembly
Stator Assembly
Multi-Position Clutch
Electrical Connector
Dynamoelectric Machine

39 patents:

1. 10714996 - External rotor electric machine with SMC blocks interposed between permanent magnets (2020-07-14),
2. 10622881 - Circuits for softening switching phases in voltage converters (2020-04-14),
3. 10587257 - Commutation cell and compensation circuit therefor (2020-03-10),
4. 10468971 - Power converter configured for limiting switching overvoltage (2019-11-05),
5. 10468927 - Inserted permanent magnet rotor for an external rotor electric machine (2019-11-05),
6. 10277112 - Physical topology for a power converter (2019-04-30),
7. 10270315 - Cast cooling arrangement for electric machines (2019-04-23),
8. 10205405 - Turn-off overvoltage limiting for IGBT (2019-02-12),
9. 9882465 - Commutation cell, power converter and compensation circuit having dynamically controlled voltage gains (2018-01-30),
10. 9812987 - Topology for controlled power switch module (2017-11-07),
11. 9774244 - Power converter configured for limiting switching overvoltage (2017-09-26),
12. 9768693 - Compensation circuit, commutation cell and power converter controlling turn-on and turn-off of a power electronic switch (2017-09-19),
13. 9748821 - Modular cooling arrangement for electric machine (2017-08-29),
14. 9647504 - Interphase insulator (2017-05-09),
15. 9608543 - Turn-off overvoltage limiting for IGBT (2017-03-28),
Tm4 Inc. is a Canadian company based in Boucherville, specializing in the development and manufacturing of electric powertrain systems for various applications, including automotive and commercial vehicles. The organization focuses on innovative technologies that enhance the efficiency and performance of electric motors and control systems. With a commitment to sustainability, Tm4 plays a significant role in advancing electric mobility solutions, contributing to the broader transition towards cleaner transportation alternatives.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

Tm4 Inc.
39 Patents

#2 in Boucherville

#350 in Canada

#17,428 in the World

Boucherville, CA
Boucherville, Canada

Tm4 Inc.

Forward Citations = 214

45 inventors:

goldMedal Martin Houle (14 out of 23 patents)

silverMedal Jean-Marc Cyr (11 out of 13 patents)

bronzeMedal Maalainine El Yacoubi (8 out of 14 patents)

4.  Pascal Fleury (7 out of 10 patents)

5.  Mohammed Amar (7 out of 9 patents)

Please report any incorrect information to [email protected]
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