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For the Inventor, By the Inventor

Pierrefonds, Canada

C. L. Industries Inc.

Calculating rank
USPTO Granted Patents = 15

Trademarks = 11

Forward Citations = 116

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8 inventors (with patents filed for the assignee):

goldMedal Patrick H Stewart (8 out of 12 patents)

silverMedal Wayne D Woodson (8 out of 9 patents)

bronzeMedal Claude Legault (2 out of 2 patents)

4.  William R Kloster (2 out of 2 patents)

5.  Khe-Bing J Kho (2 out of 2 patents)

6.  Pierre Deguire (1 out of 2 patents)

7.  Stephane Legault (1 out of 1 patent)

8.  Brian D Kelley (1 out of 1 patent)


15 patents:

1. 5862692 - Safe door lock with servo motor operated cam (1999-01-26),
2. 4895010 - Combination lock with self-canceling mechanism (1990-01-23),
3. 4761441 - Acid-curable compositions comprising mixtures of furan and epoxy resins (1988-08-02),
4. 4529807 - Furfuryl esters and resins (1985-07-16),
5. 4518723 - Curable epoxy resin compositions and use in preparing formed, shaped, (1985-05-21),
6. 4481310 - Furfuryl esters and resins (1984-11-06),
7. 4478962 - Binder compositions comprising furfuryl ester and furfuryl ester-furuyl (1984-10-23),
8. 4448234 - Method for forming sand cores and molds (1984-05-15),
9. 4396526 - Organic hydroperoxide catalyst system (1983-08-02),
10. 4287092 - Acid catalysis of resin foundry binders (1981-09-01),
11. 4220578 - Method, resin and catalyst for increasing the tensile strength and core (1980-09-02),
12. 4215012 - Catalyst for increasing the tensile strength and core hardness of a sand (1980-07-29),
13. 4176114 - Process for manufacturing sand cores or molds (1979-11-27),
14. 4106545 - Method of automatic mold and core forming (1978-08-15),
15. 4037645 - Automatic mold and core forming machine (1977-07-26),
Company Overview
C. L. Industries Inc. is a Canadian company based in Pierrefonds, specializing in the development and manufacturing of high-quality industrial products. The organization focuses on innovative solutions across various sectors, including construction, automotive, and consumer goods. With a commitment to excellence, C. L. Industries leverages advanced technologies and research to enhance product performance and meet the evolving needs of its clients. The company aims to deliver reliable and efficient solutions that contribute to industry advancements.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

15 Patents

#1 in Pierrefonds

#985 in Canada

#39,991 in the World

Pierrefonds, CA
Pierrefonds, Canada

C. L. Industries Inc.

Forward Citations = 116

8 inventors:

goldMedal Patrick H Stewart (8 out of 12 patents)

silverMedal Wayne D Woodson (8 out of 9 patents)

bronzeMedal Claude Legault (2 out of 2 patents)

4.  William R Kloster (2 out of 2 patents)

5.  Khe-Bing J Kho (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: C. L. Industries Inc.. Retrieved from https://idiyas.com/company/c-l-industries

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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