| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 8 | |
| #2 | Germany | 4 | |
| #3 | United Kingdom | 3 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Gas, coke and tar production | |
| #2 | Producer gas production | |
| #3 | Working-up pitch | |
| #4 | Burners |
| # | Name | Total Patents |
|---|---|---|
| #1 | West John | 8 |
| #2 | Glover Samuel | 8 |
| #3 | John West | 1 |
| #4 | Wild William | 1 |
| #5 | Hargreaves John | 1 |
| #6 | Samuel Glover | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1491036A | Vertical retort for the continuous destructive distillation of carbonaceous materials | |
| GB170197A | Improvements in vertical retorts for the continuous destructive distillation of carbonaceous materials | |
| GB172783A | Improved means for facilitating the separation of liquor from tar and oils | |
| GB163150A | Improvements relating to vertical retort settings for the destructive distillation of coal and the like |