| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 14 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Vehicle transmission mounting | |
| #2 | Cross-cutting vehicle technologies | |
| #3 | Gearing | |
| #4 | Unspecified technologies | |
| #5 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Thoma Christian Helmut | 14 |
| #2 | Arnold George Duncan Mcrae | 11 |
| #3 | Arnold George Duncan Macrae | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2002173398A1 | Hydrostatic transmission with internal fluid expansion chamber | |
| US6354975B1 | Combined hydrostatic and gear transmissions employing independent sumps | |
| US6343471B1 | Hydrostatic transmissions and transaxles |