| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Chemical engineering | |
| #3 | Machines | |
| #4 | Thermal processes | |
| #5 | Mechanical elements | |
| #6 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Gas-turbine plants | |
| #2 | Separation | |
| #3 | Unspecified technologies | |
| #4 | Steam turbines | |
| #5 | Non-positive-displacement pumps | |
| #6 | Gas-turbine combustion chambers | |
| #7 | Jet-propulsion plants | |
| #8 | Nails | |
| #9 | Heat-exchanger without contact | |
| #10 | Crop agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hill Charles C | 14 |
| #2 | Hill Theodore B | 4 |
| #3 | Scherf Charles J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2009135560A1 | High efficiency fluid movers | |
| US2007140842A1 | High efficiency fluid movers | |
| WO9316786A1 | Improved fluid fractionator | |
| CA2130824A1 | Fluid fractionator | |
| US5112367A | Fluid fractionator | |
| US3314232A | Gas turbine engine with aerodynamic torque converter drive | |
| US3166237A | Gas turbine power plant | |
| US3221500A | Gas turbine power plant | |
| US3229465A | Gas turbine power plant | |
| US3229795A | Starter clutch for gas turbines | |
| US3256688A | Controlled combustion of solid propellants | |
| US2607278A | Cultivator tool clamp | |
| CA714766A | Gas turbine power plant | |
| CA745379A | Gas turbine power plant |