| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 4 | |
| #2 | Canada | 1 | |
| #3 | Germany | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Finland | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Netherlands | 1 | |
| #8 | Norway | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Clutches and brakes | |
| #3 | Metal-working | |
| #4 | Earth drilling | |
| #5 | Nails | |
| #6 | Tools for connecting or disengaging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sundberg Staffan | 6 |
| #2 | Jonsson Goete | 5 |
| #3 | Kullman Ralf | 1 |
| #4 | Jonsson G | 1 |
| #5 | Jonsson Gote | 1 |
| #6 | Jonsson T | 1 |
| #7 | Sundberg S | 1 |
| #8 | Sundgerg Staffan | 1 |
| #9 | Barth A | 1 |
| #10 | Kauppi E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0221867A2 | A method of constructing a pump rod by joining sucker rods for drawing up oil and sucker rods, coupling elements and an assembly tool for performing the method | |
| US4526556A | Device for connecting two shafts |