| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 4 | |
| #2 | United States | 3 | |
| #3 | Australia | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Tools for connecting or disengaging | |
| #3 | Handles for hand implements | |
| #4 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Roberts Peter M | 12 |
| #2 | Davidson John B | 10 |
| #3 | Moon C Robert | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US5660491A | Universal joint for torque transmitting tools | |
| CA2149351A1 | Universal joint for torque transmitting tools | |
| US5501125A | Quick release mechanism for tools such as socket wrenches | |
| CA2120856A1 | Quick release mechanism for tools such as socket wrenches | |
| US5433548A | Universal joint for torque transmitting tools |