| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | Netherlands | 4 | |
| #3 | United States | 4 | |
| #4 | Canada | 3 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Japan | 1 | |
| #7 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Gearing | |
| #2 | Unspecified technologies | |
| #3 | Shafts | |
| #4 | Making screws | |
| #5 | Making gears or toothed racks | |
| #6 | Thread cutting | |
| #7 | Accessories for machine tools | |
| #8 | Grinding or polishing devices | |
| #9 | Measuring length, angles and areas |
| # | Name | Total Patents |
|---|---|---|
| #1 | Perrin Herve | 4 |
| #2 | Detraz Jacques | 3 |
| #3 | Druet Clair | 3 |
| #4 | Fund Jean Claude | 2 |
| #5 | Gambut Jean Michel | 1 |
| #6 | Perrin H | 1 |
| #7 | Herve Perrin | 1 |
| #8 | Gambut Michel | 1 |
| #9 | Kureeru Dourue | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0025750A1 | Disengageable rolling screw and nut device | |
| US3937097A | Ball-equipped screw and nut mechanisms | |
| US3961541A | Ball-equipped screw and nut mechanism | |
| CA705032A | Mechanism for transforming a movement of rotation into a movement of translation | |
| CA746213A | Method of manufacturing hardened stainless steel gears |