% Expired Patents = 37.5

Trademarks = 1

Forward Citations = 27

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6 inventors (with patents filed for the assignee):

Gerald V Chalifoux (7 out of 7 patents)

Clint Jones (2 out of 2 patents)

Robert B Logan (2 out of 2 patents)

4. Yi Yang (1 out of 6 patents)

5. Scott Penny (1 out of 1 patent)

6. Trevor Wayne MacDougall (1 out of 63 patents)

8 patents: Sort by Forward Citations

1. 10934822 - Low-pressure method and apparatus of producing hydrocarbons from an underground formation using electric resistive heating and solvent injection (2021-03-02),

2. 10260489 - Method of supplying fluid to a submersible pump (2019-04-16),

3. 10087728 - Method and apparatus for installing and removing an electric submersible pump (2018-10-02),

4. 9920594 - Method and apparatus for supporting cables within coil tubing (2018-03-20),

5. 9696135 - Method for analyzing nested optical cavities (2017-07-04),

6. 8915303 - Method and apparatus for installing and removing an electric submersible pump (2014-12-23),

7. 7561776 - Method of preventing hydrogen darkening of optic fibre (2009-07-14),

8. 7290601 - Braided thermocouple cable bundle (2007-11-06),

Company Overview

Petrospec Engineering Ltd. is a leading engineering and consulting firm specializing in the oil and gas industry. With a strong focus on innovation and technology, the company provides comprehensive solutions for exploration, production, and refining processes. Their team of experienced engineers and technicians are dedicated to delivering high-quality services and products to clients worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

8 Patents

#1 in Sherwood Park

#1,878 in Canada

Sherwood Park, Canada

Petrospec Engineering Ltd.

Forward Citations = 27

6 inventors:

Gerald V Chalifoux (7 out of 7 patents)

Clint Jones (2 out of 2 patents)

Robert B Logan (2 out of 2 patents)

4. Yi Yang (1 out of 6 patents)

5. Scott Penny (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Petrospec Engineering Ltd.. Retrieved from https://idiyas.com/company/petrospec-engineering

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]