Questor Industries Inc.

Calculating rank

USPTO Granted Patents = 3

Forward Citations = 346

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3 inventors (with patents filed for the assignee):

Bowie Gordon Keefer (3 out of 49 patents)

Christopher R McLean (1 out of 38 patents)

David G Doman (1 out of 10 patents)

3 patents: Sort by Forward Citations

1. 6176897 - High frequency pressure swing adsorption (2001-01-23),

2. 6056804 - High frequency rotary pressure swing adsorption apparatus (2000-05-02),

3. 6051050 - Modular pressure swing adsorption with energy recovery (2000-04-18),

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USPTO Data Jan 1 1976 - Oct 27 2026

3 Patents

#78 in Burnaby

#4,376 in Canada

Burnaby, Canada

Questor Industries Inc.

Forward Citations = 346

3 inventors:

Bowie Gordon Keefer (3 out of 49 patents)

Christopher R McLean (1 out of 38 patents)

David G Doman (1 out of 10 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Questor Industries Inc.. Retrieved from https://idiyas.com/company/questor-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]