| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 3 | |
| #2 | Denmark | 3 | |
| #3 | Spain | 3 | |
| #4 | Canada | 2 | |
| #5 | Greece | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Containers for goods storage | |
| #2 | Gas, coke and tar production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hackford John Edward | 6 |
| #2 | John Edward Hackford | 3 |
| #3 | Shaw Clifford | 1 |
| #4 | Smith William Edwin | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES117147A1 | Improvements in the carbonization of coal, shale and other appropriate fuels at low temperature and thermal treatment of minerals and other suitable materials. | |
| ES106447A1 | Improvements in the burning of liquid fuel. | |
| ES104830A1 | Improvements in the burning of liquid fuel. | |
| CA402448A | Container manufacture | |
| CA311420A | Fuel carbonisation at low temperature |