| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | Australia | 2 | |
| #3 | Canada | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | WIPO (World Intellectual Property Organization) | 2 | |
| #6 | Finland | 1 | |
| #7 | Mexico | 1 | |
| #8 | Norway | 1 | |
| #9 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Basic materials chemistry | |
| #3 | Materials and metallurgy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rees Geraint | 14 |
| #2 | Steward Ronald J | 8 |
| #3 | Leitch Alan J | 8 |
| #4 | Steward Ronald | 1 |
| #5 | Leitch Alan | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA2200333A1 | Bonded medium | |
| GB9512433D0 | Agglomerates from carbonaceous fuel | |
| GB9126804D0 | Filteration medium |