| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 35 | |
| #2 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Chemical engineering | |
| #3 | Environmental technology | |
| #4 | Basic materials chemistry | |
| #5 | Transport | |
| #6 | Control | |
| #7 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Heat-exchanger with contact | |
| #3 | Steam generation | |
| #4 | Preheating for stem generation | |
| #5 | Water treatment | |
| #6 | Vehicle tyre repairing | |
| #7 | Lubricating compositions | |
| #8 | Mixing | |
| #9 | Steam traps | |
| #10 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Buehring Otto | 7 |
| Publication | Filing date | Title |
|---|---|---|
| GB478090A | Apparatus for heating liquids with steam | |
| GB349554A | Improvements in connection with the purification of feed water | |
| GB324428A | Method of treating feed water for steam boilers, particularly high pressure boilers |