| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 6 | |
| #2 | Canada | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Australia | 1 | |
| #6 | Czechia | 1 | |
| #7 | Finland | 1 | |
| #8 | Hungary | 1 | |
| #9 | Norway | 1 | |
| #10 | New Zealand | 1 | |
| #11 | Romania | 1 | |
| #12 | Slovakia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Basic materials chemistry |
| # | Name | Total Patents |
|---|---|---|
| #1 | Grant Roy Arthur | 12 |
| #2 | Dear Arthur Stephen | 4 |
| #3 | Grant Roy A | 1 |
| #4 | Grant Roy Arhur | 1 |
| #5 | Grant Arthur R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB9505293D0 | Stabilization of organic sludges | |
| AU3457193A | Effluent treatment process | |
| GB9201973D0 | Effluent treatment | |
| GB9112596D0 | Sewage treatment process |