% Expired Patents = 14.3

CIPO Patents = 4

EPO Patents = 1

Trademarks = 4

Forward Citations = 52

Loading Chart...

5 inventors (with patents filed for the assignee):

Laurence Anthony Sinnige (7 out of 8 patents)

Niels Mathieu Barbara Smeets (4 out of 5 patents)

Hyungseak Kim (3 out of 3 patents)

4. Azadeh Joshani (3 out of 3 patents)

5. Rebecca Katie Hum (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 12678996 - Aqueous wax emulsions and dispersions and uses thereof (2026-07-14),

2. 12515989 - Wax dispersion composition containing lignin for imparting water resistance to gypsum (2026-01-06),

3. 12049020 - Aqueous wax emulsions and dispersions and uses thereof (2024-07-30),

4. 11752660 - Aqueous wax emulsions and dispersions and uses thereof (2023-09-12),

5. 8968870 - Emulsions for fibreglass binder systems (2015-03-03),

6. 6890976 - Wax emulsion formulation and gypsum composition containing same (2005-05-10),

7. 5968237 - Wax emulsion composition for imparting water repellency to gypsum (1999-10-19),

Company Overview

Walker Industries Holdings Limited is a diversified family-owned company based in Canada. They specialize in waste management, renewable energy, construction, and more. With over 130 years of experience, the company is committed to sustainability and innovation in all their operations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

7 Patents

#2 in Thorold

#2,102 in Canada

Thorold, Canada

Walker Industries Holdings Limited

Forward Citations = 52

5 inventors:

Laurence Anthony Sinnige (7 out of 8 patents)

Niels Mathieu Barbara Smeets (4 out of 5 patents)

Hyungseak Kim (3 out of 3 patents)

4. Azadeh Joshani (3 out of 3 patents)

5. Rebecca Katie Hum (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Walker Industries Holdings Limited. Retrieved from https://idiyas.com/company/walker-industries-holdings

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]

4 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]

1 patent (EPO):

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]