| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Gas, coke and tar production | |
| #2 | Producer gas production | |
| #3 | Climate change mitigation in goods production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Steinfeldt Heinrich | 4 |
| Publication | Filing date | Title |
|---|---|---|
| GB497911A | Improvements in or relating to vertical chamber ovens for producing gas and coke | |
| GB482872A | Coke ovens for low-temperature carbonisation of moulded pieces of coal | |
| GB450065A | Improvements in or relating to vertical chamber ovens for producing gas and coke |