| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Transport | |
| #4 | Electrical machinery and energy | |
| #5 | Environmental technology | |
| #6 | Mechanical elements | |
| #7 | Consumer goods |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hoyt Gabriel P B | 13 |
| #2 | Carse David B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1560238A | Carburetor | |
| US1412245A | Hot-air regulator | |
| US1289780A | Wire-spoke wheel. | |
| US1228557A | Wheel. | |
| US1205895A | Engine crank-movement. | |
| US1180042A | Valve mechanism. | |
| US1091340A | Rotary valve. | |
| US916871A | Spark-plug. | |
| CA102538A | Motor | |
| US874200A | Motor. | |
| US642695A | Secret ballot. | |
| US630229A | Engine. | |
| US628327A | Rotary engine. |