| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 4 | |
| #2 | Norway | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | Belgium | 2 | |
| #5 | Canada | 2 | |
| #6 | Russian Federation | 2 | |
| #7 | Sweden | 2 | |
| #8 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Materials and metallurgy | |
| #4 | Surface technology and coating | |
| #5 | Machine tools | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Metal-working | |
| #5 | Working metallic powder | |
| #6 | Alloys | |
| #7 | Pipes | |
| #8 | Coating metallic material |
| # | Name | Total Patents |
|---|---|---|
| #1 | Paues Staffan | 7 |
| #2 | Deschutter Rene | 5 |
| #3 | Easton Andrew R | 2 |
| #4 | Young David E | 2 |
| #5 | Waldenstroem M | 2 |
| #6 | Hallez Charles P | 1 |
| #7 | Deschutter Renu L | 1 |
| #8 | Rene Deshotter | 1 |
| #9 | Hallez Charles Pierre | 1 |
| #10 | Koskie Jr Earl T | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO9207163A1 | Method and device for absorbing vibration in a rotating drill pipe string | |
| EP0588373A1 | Double-tube core taking apparatus for inclined drilling | |
| BE1004330A3 | Dual core drilling devie. | |
| BE1003903A3 | Tool for drilling extend well. | |
| US5169183A | Threaded joint for drill rod elements |