| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 6 | |
| #2 | Canada | 2 | |
| #3 | EPO (European Patent Office) | 1 | |
| #4 | Norway | 1 | |
| #5 | United States | 1 | |
| #6 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Appleton Robert Patrick | 5 |
| #2 | Rastegar Gholam Hossein | 2 |
| #3 | Appleton Robert Partick | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB9809408D0 | Downhole apparatus | |
| GB9716843D0 | Downhole apparatus | |
| WO9708423A1 | Friction-reducing drill pipe component | |
| GB9523272D0 | Non rotating sleeved frill pipe tool joint body | |
| GB9517650D0 | Drill pipe replaceable sleeve wear sub | |
| GB9517649D0 | Drill pipe roller wear sub | |
| GB9516192D0 | Drill pipe spiralled wear sub |