| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Ireland | 2 | |
| #2 | Australia | 1 | |
| #3 | Brazil | 1 | |
| #4 | Canada | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Finland | 1 | |
| #7 | Mexico | 1 | |
| #8 | Norway | 1 | |
| #9 | Sweden | 1 | |
| #10 | United States | 1 | |
| #11 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gustafsson Christer | 8 |
| #2 | Gustafsson C | 1 |
| #3 | Christer Gustafsson | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0173922A1 | Joint device in extension drill equipment for percussive drilling |