| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Australia | 1 | |
| #3 | Belgium | 1 | |
| #4 | Canada | 1 | |
| #5 | Switzerland | 1 | |
| #6 | Germany | 1 | |
| #7 | France | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | Japan | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Basic materials chemistry |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rotter Franz | 7 |
| #2 | Rotter F | 2 |
| #3 | Furantsu Rotsutaa | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4306506A | Gasification apparatus | |
| US4308103A | Apparatus for the pyrolysis of comminuted solid carbonizable materials | |
| US4309195A | Apparatus for gasifying solid fuels and wastes | |
| US4123332A | Process and apparatus for carbonizing a comminuted solid carbonizable material |