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For the Inventor, By the Inventor

Barrie, Canada

Wolf Steel Ltd.

Calculating rank
USPTO Granted Patents = 10

Trademarks = 13

Forward Citations = 38

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19 inventors (with patents filed for the assignee):

goldMedal Wolfgang Schroeter (4 out of 15 patents)

silverMedal Clifford N Lilley (3 out of 3 patents)

bronzeMedal David R Shulver (2 out of 20 patents)

4.  Cliff Lilley (2 out of 7 patents)

5.  Paul Hodges (2 out of 2 patents)

6.  Derek Fong (2 out of 2 patents)

7.  Richard Tjart (1 out of 2 patents)

8.  Jan Gutowski (1 out of 1 patent)

9.  Xiaoming Liu (1 out of 1 patent)

10.  Jacob Wiltshire (1 out of 1 patent)

11.  Cuong Vo (1 out of 1 patent)

12.  Thisaru Sibera (1 out of 1 patent)

13.  Chris Schroeter (1 out of 3 patents)

14.  Mark Robinet (1 out of 1 patent)

15.  Chris Marshall (1 out of 1 patent)


10 patents:

1. 11976821 - Control system for a fuel burning appliance and a method of operating such an appliance (2024-05-07),
2. 11859826 - Low profile termination cap for direct vent appliance (2024-01-02),
3. 11624506 - Smart glass for a fireplace (2023-04-11),
4. 11499718 - Igniter valve (2022-11-15),
5. 10739014 - System and method to cool an exposed surface of an appliance (2020-08-11),
6. D692542 - Furnace cabinet panel (2013-10-29),
7. D540456 - Fireplace or stove door (2007-04-10),
8. D417497 - Gas appliance vent adapter (1999-12-07),
9. 5307801 - Zero clearance fireplace (1994-05-03),
10. 5303693 - Summer damper for fireplace (1994-04-19),
Company Overview
Wolf Steel Ltd. is a Canadian company based in Barrie, specializing in the design and manufacturing of high-quality heating products, including wood and gas fireplaces, stoves, and outdoor fire pits. The company is known for its innovative approach to energy-efficient heating solutions, combining advanced engineering with aesthetic appeal. Wolf Steel Ltd. focuses on enhancing home comfort while promoting sustainability through its commitment to environmentally friendly practices and technologies.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

10 Patents

#6 in Barrie

#1,525 in Canada

#56,169 in the World

Barrie, CA
Barrie, Canada

Wolf Steel Ltd.

Forward Citations = 38

19 inventors:

goldMedal Wolfgang Schroeter (4 out of 15 patents)

silverMedal Clifford N Lilley (3 out of 3 patents)

bronzeMedal David R Shulver (2 out of 20 patents)

4.  Cliff Lilley (2 out of 7 patents)

5.  Paul Hodges (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Wolf Steel Ltd.. Retrieved from https://idiyas.com/company/wolf-steel

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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