| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 20 | |
| #2 | Germany | 4 | |
| #3 | Canada | 3 | |
| #4 | United Kingdom | 3 | |
| #5 | France | 2 | |
| #6 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Control |
| # | Name | Total Patents |
|---|---|---|
| #1 | Waterfill Robert W | 12 |
| #2 | Warren Jr Robert M | 5 |
| #3 | Kreuttner Joseph W | 4 |
| #4 | Warren Robert M Jr | 3 |
| #5 | David Rickelton | 2 |
| #6 | Smith William E | 2 |
| #7 | Kornhauser Mark H | 1 |
| #8 | Reynolds John P | 1 |
| #9 | W Waterfill Robert | 1 |
| #10 | Rickelton David | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3477497A | Air conditioning | |
| US3395633A | Air mixing device | |
| US3433410A | Regulator | |
| US3409043A | Air conditioning | |
| US3394769A | Air conditioning | |
| US3425443A | Air conditioning | |
| US3367407A | Air conditioning | |
| US3242943A | Flow control | |
| US3292657A | Curtain control valve | |
| US3187806A | Air conditioning | |
| US3220711A | Air conditioning system made up of modular components | |
| US3187768A | Flow control | |
| DE1798411A1 | Flow regulator | |
| FR1260972A | Fluid flow control devices | |
| GB940069A | Improvements in fluid flow regulators | |
| US3053275A | Flexible curtain control valve | |
| US3060960A | Curtain valve | |
| US3053454A | Fluid mixer and flow regulator | |
| US2974680A | Valve | |
| US2997240A | Air conditioning system mixing valve |