| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 12 | |
| #2 | Austria | 4 | |
| #3 | Germany | 4 | |
| #4 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Packaging and shipping | |
| #3 | Engines, pumps and turbines | |
| #4 | Chemical engineering | |
| #5 | Measurement | |
| #6 | Machines | |
| #7 | Thermal processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Alfred Trummer | 10 |
| #2 | Trummer Alfred | 4 |
| #3 | Alfred Trummer-Crottogini | 1 |
| #4 | Trummer A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1960605A1 | Sludge feed screw | |
| DE1905608A1 | Process for removing fly ash and other impurities from fuel gases and installation for carrying out the process |