| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | United States | 4 | |
| #3 | Australia | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology | |
| #3 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Non-metallic elements | |
| #2 | Climate change mitigation in goods production | |
| #3 | Paper recycling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Drexler Drew John | 6 |
| #2 | Drexler Drew J | 2 |
| #3 | Burton John T | 2 |
| #4 | Kutney Gerald W | 2 |
| #5 | Derrah Russell I | 1 |
| #6 | Derrah Russell Ian | 1 |
| #7 | Davidson Charles Martin | 1 |
| #8 | Burton John Thomas | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA2134270A1 | Nox destruction in sulphuric acid | |
| CA2002313A1 | Decolourization of sulphuric acid | |
| CA1338503C | Chlorine dioxide generation | |
| CA1332862C | Kraft pulping process | |
| CA1334123C | Stabilized concentrated sulphuric acid compositions |