| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 19 | |
| #2 | United States | 8 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Machines | |
| #4 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Moody Lewis F | 27 |
| Publication | Filing date | Title |
|---|---|---|
| US2449002A | Apparatus for regulating centrifugal machines | |
| US2380606A | Method and apparatus for regulating the head and capacity of centrifugal pumps | |
| US2306742A | Pump | |
| US2262191A | Pump | |
| US1776392A | Turbine apparatus | |
| US1688736A | Hydraulic turbine | |
| US1824916A | Valve | |
| US1709994A | Hydraulic turbine | |
| CA195509A | Hydraulic draft tube | |
| CA180472A | Draft tube for turbines | |
| CA247200A | Impulse turbine | |
| CA203010A | Rotary pump | |
| CA295888A | Hydraulic turbine | |
| CA282090A | Draft tube | |
| CA198475A | Hydraulic turbine | |
| CA246857A | Hydraulic turbine | |
| CA222085A | Pump | |
| CA284701A | Propeller type turbine or pump | |
| CA198253A | Rotary hydraulic pump | |
| CA426956A | Centrifugal pump apparatus |