| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 5 | |
| #2 | Canada | 4 | |
| #3 | Japan | 2 | |
| #4 | Spain | 1 | |
| #5 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Gearing | |
| #2 | Clutches and brakes | |
| #3 | Rotary-pistons | |
| #4 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kopp Jean E | 6 |
| #2 | Jean E Kopp | 3 |
| #3 | Jiyan Ee Kotsupu | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CA1043132A | Continuously variable drive system | |
| CA595478A | Infinitely variable friction drive | |
| CA806564A | Bearing mountings for roller in continuously variable ratio friction drives |