| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 10 | |
| #2 | Australia | 6 | |
| #3 | WIPO (World Intellectual Property Organization) | 6 | |
| #4 | United States | 4 | |
| #5 | Norway | 3 | |
| #6 | Canada | 2 | |
| #7 | EPO (European Patent Office) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | French Clive John | 21 |
| #2 | Batten Glen | 8 |
| #3 | Knowles David George | 2 |
| #4 | Milne John | 2 |
| Publication | Filing date | Title |
|---|---|---|
| AU8449798A | Seal arrangement | |
| GB9806158D0 | Tool protection | |
| GB9805992D0 | Downhole apparatus | |
| GB9725137D0 | Perforating apparatus | |
| GB9722843D0 | Casing perforating system | |
| GB9721496D0 | Downhole valve | |
| GB9715653D0 | Casing perforating system | |
| GB9709007D0 | Casing perforating system | |
| GB9704213D0 | Drilling apparatus | |
| US6230808B1 | Downhole apparatus | |
| GB9603677D0 | Downhole apparatus | |
| GB9602211D0 | Improved downhole apparatus |