| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Canada | 2 | |
| #3 | Sweden | 2 | |
| #4 | Germany | 1 | |
| #5 | Spain | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Japan | 1 | |
| #8 | Mexico | 1 | |
| #9 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Vehicle drive control systems | |
| #2 | Unspecified technologies | |
| #3 | Cross-cutting vehicle technologies | |
| #4 | Clutches and brakes | |
| #5 | Gearing | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Smyth Robert R | 6 |
| #2 | Smyth William B | 3 |
| #3 | Smyth Robert Ralston | 2 |
| #4 | Smyth Ralston Blackburn | 1 |
| #5 | Smyth R R | 1 |
| #6 | Robaato Rarusuton Sumisu | 1 |
| #7 | Uiriamu Buratsukubaan Sumisu | 1 |
| #8 | Smyth Ralston B | 1 |
| #9 | Smyth William Blackburn | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4361060A | Mechanical automatic transmission | |
| CA1189593A | Mechanical automatic transmission | |
| US4081065A | Controlled power clutch | |
| US3478851A | Automotive transmission |