| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Larkin Elwood T | 16 |
| #2 | Sherbondy Earl H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2099898A | Portable foundation for machinery | |
| US2104347A | Piston | |
| US2017154A | Valve seat construction for engines and the like | |
| US1947603A | Gas mixing device | |
| US1949542A | Piston | |
| US1789005A | Drip pan for carburetors | |
| US1713541A | Lubricant-cooling device for internal-combustion engines and the like | |
| US1739007A | Piston for internal-combustion engines | |
| US1691201A | Carburetor | |
| US1642734A | Internal-combustion engine with rotary valve | |
| US1642735A | Internal-combustion engine | |
| US1581964A | Piston | |
| US1560609A | Driving mechanism | |
| US1559628A | Gas engine | |
| US1513052A | Pump | |
| CA338408A | Engine controlling system | |
| CA358288A | Piston |