| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 3 | |
| #3 | Germany | 1 | |
| #4 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Motor vehicles | |
| #2 | Cycles | |
| #3 | Unspecified technologies | |
| #4 | Gearing | |
| #5 | Harvesting | |
| #6 | Vehicle connections |
| # | Name | Total Patents |
|---|---|---|
| #1 | Clapper John S | 4 |
| #2 | Hartsough D Maurice | 4 |
| #3 | Maurice Hartsough D | 1 |
| #4 | White Charles E | 1 |
| #5 | Arnold Skarnes Jay | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1372321A | Tractor | |
| US1267027A | Tractor-coupling device. | |
| CA166670A | Traction machine | |
| CA166931A | Gas engine crank case | |
| CA175863A | Gas engine | |
| US1178993A | Traction-machine. | |
| US1358730A | Tractor | |
| US1139414A | Tractor. | |
| US1138610A | Antitipping device for tractors. | |
| US1138611A | Drag-bar connection for tractors. | |
| US1128246A | Tractor. |