| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Belgium | 7 | |
| #2 | France | 3 | |
| #3 | Spain | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Fuels | |
| #2 | Gas, coke and tar production |
| Publication | Filing date | Title |
|---|---|---|
| ES277806A1 | Manufacturing procedure of hulla agglomerates similar to artificial anthracite (Machine-translation by Google Translate, not legally binding) | |
| GB947972A | Method for the manufacture of agglomerates of coal similar to artificial anthracite |