| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 18 | |
| #2 | Austria | 1 | |
| #3 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Environmental technology | |
| #4 | Control | |
| #5 | Chemical engineering | |
| #6 | Electrical machinery and energy | |
| #7 | Foods and drinks | |
| #8 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Venting or aerating devices | |
| #3 | Water treatment | |
| #4 | Systems controlling non-electric variables | |
| #5 | Separation | |
| #6 | Electric switches | |
| #7 | Foods | |
| #8 | Siphons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Whitlock Jr Robert A | 8 |
| #2 | Whitlock Fred W | 4 |
| #3 | Riche Arthur L | 2 |
| #4 | Johnson Oscar W | 1 |
| #5 | Daniels Lee G | 1 |
| #6 | Bullerjahn Adolph D | 1 |
| #7 | Steiner Frank J | 1 |
| #8 | Dymond James E | 1 |
| #9 | Johnson Bruce W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2714897A | Multiple flow control valve | |
| US2742540A | Electrical timer | |
| US2715098A | Base exchange water treatment apparatus | |
| US2716422A | Float valve | |
| US2679376A | Multiple port valve | |
| US2720845A | Ejector nozzle | |
| US2695626A | Float valve mechanism | |
| US2558471A | Float valve | |
| US2648774A | Fluid sterilizer | |
| US2522005A | Degasifier | |
| US2610023A | Valve structure | |
| US2633325A | Lift-turn valve handle structure | |
| US2451678A | Multiple port valve structure | |
| US2611392A | Pilot controlled multiport valve | |
| US2405479A | Water treatment device | |
| US2351648A | Hydrogen ion exchange apparatus | |
| US2254795A | Valve control mechanism | |
| US2435366A | Automatic water softener |