| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | Austria | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Engines, pumps and turbines | |
| #3 | Consumer goods | |
| #4 | Thermal processes | |
| #5 | Agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wagner Jakob | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB292620A | Improvements in exhaust silencers for internal combustion and other engines | |
| DE395677C | Method and device for heat utilization of the exhaust gases from internal combustion engines |