| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 20 | |
| #2 | United Kingdom | 4 | |
| #3 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Biotechnology | |
| #3 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Microbiology | |
| #3 | Heat-exchange device details | |
| #4 | Boiling machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vogelbusch Wilhelm | 3 |
| #2 | Wilhelm Vogelbusch | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB430348A | Improvements in a method of aerating liquids | |
| GB431566A | Improvements in a method of aerating liquids | |
| US1733476A | Evaporation, distillation, or the like apparatus | |
| GB265517A | Improvements in evaporation, distillation or the like apparatus | |
| US1637431A | Concentrator for liquids | |
| GB196935A | Improvements in or relating to concentrating devices |