| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture | |
| #2 | Transport | |
| #3 | Machines | |
| #4 | Machine tools | |
| #5 | Engines, pumps and turbines | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Motor vehicles | |
| #2 | Harvesting | |
| #3 | Crop agriculture | |
| #4 | Unspecified technologies | |
| #5 | Clutches and brakes | |
| #6 | Internal-combustion piston engines | |
| #7 | Unspecified technologies | |
| #8 | Grinding or polishing devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ziegler George J | 8 |
| #2 | Bradford John B | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US2052068A | Combined breaking plow and cultivator | |
| US2038818A | Internal combustion engine | |
| US2001048A | Clutch mechanism | |
| US1964780A | Tractor wheel | |
| US1964779A | Tractor | |
| US1915772A | Clutch | |
| US1833346A | Nozzle for picking cotton | |
| US1863038A | Lawn mower sharpener | |
| US1777029A | Harpoon weeder | |
| US1941124A | Cotton picking and cleaning machine | |
| CA315120A | Harpoon weeder |