| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Gas, coke and tar production | |
| #2 | Purifying gas composition | |
| #3 | Producer gas production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Beuthner Kurt | 3 |
| #2 | Kurt Beuthner | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1895601A | Purification of gases and apparatus therefor | |
| GB369490A | Improvements in or relating to the purification of distillation gases and apparatus therefor | |
| GB337278A | Method and apparatus for removal of distillation products from the lower part of coke ovens | |
| US1843798A | Base closure for vertical gas retorts and gas chambers | |
| GB322351A | Apparatus and process for removing distillation products from the lower part of cokeovens or retorts |