| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | United Kingdom | 5 | |
| #3 | Germany | 2 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Liquid hydrocarbon mixture production | |
| #2 | Gas, coke and tar production | |
| #3 | Producer gas production | |
| #4 | Cremation furnaces |
| Publication | Filing date | Title |
|---|---|---|
| GB239071A | Process for disposing of municipal waste | |
| DE459593C | Process for the complete gasification of coal | |
| GB236780A | Process of total gasification of coal | |
| GB239069A | Process of distilling carbonaceous material | |
| DE428391C | Process for extracting oil from oil sands u. like | |
| GB236420A | Process of distilling carbonaceous material such as oil-shale | |
| GB237757A | Process of extracting oil from oil bearing sands and similar materials |