| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 17 | |
| #2 | Switzerland | 9 | |
| #3 | Austria | 6 | |
| #4 | Spain | 3 | |
| #5 | United Kingdom | 3 | |
| #6 | Denmark | 1 | |
| #7 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Chemical engineering | |
| #3 | Environmental technology | |
| #4 | Mechanical elements | |
| #5 | Consumer goods | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Steam generation | |
| #2 | Separation | |
| #3 | Water treatment | |
| #4 | Combustion residues removal | |
| #5 | Laundering textiles | |
| #6 | Water-closets with flushing devices | |
| #7 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Philipp Mueller G M B H | 7 |
| #2 | Mueller G M B H Philipp | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CH179463A | Method and device for purifying water. | |
| GB254707A | A process for removing gases from boiler feed water by a vacuum | |
| GB204353A | Method of and apparatus for purifying and clearing liquids, particularly boiler-feed water | |
| GB146162A | Improvements in lower water alarms and the like for steam boilers |