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For the Inventor, By the Inventor

Drummondville, Canada

Venmar Ventilation Inc.


USPTO Granted Patents = 30

% Expired Patents = 13.3


Trademarks = 4

Forward Citations = 697

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39 inventors (with patents filed for the assignee):

goldMedal Daniel Marcoux (14 out of 15 patents)

silverMedal Michel Julien (10 out of 13 patents)

bronzeMedal Martin Gagnon (7 out of 7 patents)

4.  Frederic Lagace (6 out of 6 patents)

5.  Patrick Mainville (5 out of 45 patents)

6.  Jean-Francois Grondin (5 out of 5 patents)

7.  Pierre Cusson (5 out of 5 patents)

8.  Dominic Blanchette (4 out of 7 patents)

9.  Eric Charlebois (4 out of 4 patents)

10.  Jean-Bernard Piaud (4 out of 4 patents)

11.  Denis Maltais (4 out of 4 patents)

12.  Daniel Bathalon (4 out of 6 patents)

13.  Christian Légaré (3 out of 3 patents)

14.  Éric Charlebois (3 out of 3 patents)

15.  Sébastien Lafond (3 out of 3 patents)


Core Competencies:
Heat Recovery Air Exchanger
Louvered Ventilation Grille
Kitchen Hood
Damper Assembly
Air Handling Systems
Pressure Equalizing System
Ventilation Method
Stackable Energy Transfer Core
Air Inlet Port
Ventilator Housing
Exterior Inlet Port

30 patents:

1. D704318 - Heat recovery air exchanger (2014-05-06),
2. D638925 - Louvered ventilation grille (2011-05-31),
3. D635235 - Kitchen hood (2011-03-29),
4. D635234 - Kitchen hood (2011-03-29),
5. 7717398 - Damper assembly exploiting a crankshaft (2010-05-18),
6. 7635296 - Air handling systems or devices intermingling fresh and stale air (2009-12-22),
7. 7575345 - Lamp housing assembly (2009-08-18),
8. 7565924 - Pressure equilizing system (2009-07-28),
9. D594956 - Front portion of a kitchen hood (2009-06-23),
10. 7533691 - Adjustable damper assembly (2009-05-19),
11. 7458228 - Ventilation system (2008-12-02),
12. D568457 - Telescopic front portion of a kitchen hood (2008-05-06),
13. D566822 - Kitchen hood (2008-04-15),
14. 7331376 - Stackable energy transfer core spacer (2008-02-19),
15. 7328883 - Damper assembly exploiting a crankshaft (2008-02-12),
Company Overview
Venmar Ventilation Inc. is a leading manufacturer specializing in indoor air quality solutions, primarily focusing on residential and commercial ventilation systems. The company is dedicated to developing innovative technologies that enhance air circulation and filtration, ensuring healthier living environments. With a strong presence in the Canadian market, Venmar emphasizes energy efficiency and sustainability in its product offerings, contributing to improved air quality and comfort for users across various settings.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

30 Patents

#2 in Drummondville

#463 in Canada

#21,912 in the World

Drummondville, CA
Drummondville, Canada

Venmar Ventilation Inc.

Forward Citations = 697

39 inventors:

goldMedal Daniel Marcoux (14 out of 15 patents)

silverMedal Michel Julien (10 out of 13 patents)

bronzeMedal Martin Gagnon (7 out of 7 patents)

4.  Frederic Lagace (6 out of 6 patents)

5.  Patrick Mainville (5 out of 45 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Venmar Ventilation Inc.. Retrieved from https://idiyas.com/company/venmar-ventilation

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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