CIPO Patents = 2

Forward Citations = 58

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5 inventors (with patents filed for the assignee):

Darcy Warren (7 out of 10 patents)

Ron Bartel (2 out of 4 patents)

Steve Bartel (1 out of 3 patents)

4. John Bartel (1 out of 1 patent)

5. Jeff D Lewis (1 out of 9 patents)

7 patents: Sort by Forward Citations

1. 9273945 - Inspection device for measuring pipe size (2016-03-01),

2. 9261219 - Method of installing and curing a liner in a sewer pipe (2016-02-16),

3. 9023160 - Lateral liner launcher device and method of installation (2015-05-05),

4. 8316892 - Lateral liner with seal (2012-11-27),

5. 6827526 - Method and device for lining a sewer pipe (2004-12-07),

6. 6695013 - Method and device for lining a lateral sewer pipe (2004-02-24),

7. 6484757 - Method and device for lining a lateral sewer pipe (2002-11-26),

Company Overview

Liqui-force Sewer Services Inc. is a leading provider of trenchless sewer maintenance and rehabilitation services. With over 20 years of experience, we offer innovative solutions for repairing and maintaining sewer systems without the need for costly and disruptive excavation. Our services include pipe lining, cleaning, CCTV inspection, and more, all aimed at extending the life of your sewer infrastructure and minimizing downtime. Contact us today for efficient and cost-effective sewer solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#1 in Kingsville

#2,100 in Canada

Kingsville, Canada

Liqui-Force Sewer Services Inc.

Forward Citations = 58

5 inventors:

Darcy Warren (7 out of 10 patents)

Ron Bartel (2 out of 4 patents)

Steve Bartel (1 out of 3 patents)

4. John Bartel (1 out of 1 patent)

5. Jeff D Lewis (1 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Liqui-Force Sewer Services Inc.. Retrieved from https://idiyas.com/company/liqui-force-sewer-services

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]

2 patents (CIPO):

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]