| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 24 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Machines | |
| #4 | Mechanical elements | |
| #5 | Thermal processes | |
| #6 | Electrical machinery and energy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Biggs George A | 20 |
| #2 | Swindler Harry M | 3 |
| #3 | Sparks Albert F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1954194A | Hydraulic turbine | |
| US1950776A | Hydraulic turbine | |
| US1962381A | Vacuum breaker | |
| US1950777A | Hydraulic turbine | |
| US1977036A | Hydraulic turbine | |
| US1950775A | Hydraulic turbine | |
| US1962383A | Hydraulic turbine | |
| US1950774A | Hydraulic turbine | |
| US1942995A | Hydraulic turbine | |
| US1948478A | Hydraulic turbine | |
| US1962380A | Hydraulic turbine | |
| US1954193A | Hydraulic turbine | |
| US1950773A | Hydraulic turbine | |
| US1942589A | Hydraulic turbine | |
| US1931158A | Hydraulic turbine | |
| US1917404A | Stoker | |
| US1782520A | Intermittent driving mechanism | |
| US1931172A | Stoker | |
| US1865503A | Hydraulic turbine | |
| US1865502A | Hydraulic turpine |