| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 26 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Transport | |
| #3 | Machines | |
| #4 | Machine tools | |
| #5 | Thermal processes | |
| #6 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Charter James A | 29 |
| Publication | Filing date | Title |
|---|---|---|
| US2165696A | Fluid control mechanism | |
| US1962426A | Gas engine | |
| US1627727A | Constant-compression internal-combustion engine | |
| US1649509A | Internal-combustion engine | |
| US1558238A | Vent valve for engines | |
| US1554623A | Engine starter | |
| US1551731A | Fuel automizer | |
| US1515144A | Wheel | |
| US1423598A | Metal disk wheel | |
| US1550651A | Metal-wheel-welding machine | |
| US1718775A | Gas engine | |
| US1396506A | Gas-engine | |
| US1466468A | Hollow metal wheel | |
| US1361227A | Wheel | |
| US1359964A | Metal wheel | |
| US1453304A | Explosive engine | |
| US1363838A | Wheei-hub construction | |
| US1360366A | Variable-compression gas-engine | |
| US1250431A | Piston-ring. | |
| US1106782A | Explosive-engine. |