| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | United States | 2 | |
| #3 | Canada | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Norway | 1 | |
| #6 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pia Giancarlo Tomasso Pietro | 6 |
| #2 | Pia Giancarlo | 3 |
| #3 | Pia Giancarlo Pietro Tomasso | 1 |
| #4 | Armell Richard Alvin | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2007215361A1 | Flapper valve for use in downhole applications | |
| GB0414128D0 | Valve | |
| GB0025515D0 | Well control | |
| GB0019854D0 | Drilling apparatus | |
| GB0018877D0 | Drilling method | |
| GB0015714D0 | Drill bits | |
| US5890540A | Downhole tool |