| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Australia | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Canada | 1 | |
| #6 | Republic of Korea | 1 | |
| #7 | African Intellectual Property Organization | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Machines | |
| #3 | Chemical engineering | |
| #4 | Electrical machinery and energy | |
| #5 | Measurement | |
| #6 | Control | |
| #7 | Engines, pumps and turbines | |
| #8 | Mechanical elements | |
| #9 | Consumer goods |
| # | Name | Total Patents |
|---|---|---|
| #1 | Heskett Don E | 13 |
| Publication | Filing date | Title |
|---|---|---|
| EP0238639A1 | Method of treating fluids. | |
| US4642192A | Method of treating fluids | |
| AU4296085A | Method of treating fluids | |
| US4298468A | Fluid treating apparatus | |
| US3424883A | Fluid conducting device and pressure sensitive control means | |
| US3432038A | Pressure responsive device for controlling liquid level in tanks | |
| US3130155A | Automatic flow control for automatic water softening system |