| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | Switzerland | 2 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Robert Thomann | 3 |
| Publication | Filing date | Title |
|---|---|---|
| DE632524C | Flying piston propellant gas generator | |
| US1643099A | Gate apparatus for turbines and the like | |
| DE370512C | Diffuser with rotating blades for turbines and like | |
| DE376610C | Device for stopping turbines u. like |