| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Gas, coke and tar production | |
| #2 | Climate change mitigation in goods production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Walter Runge | 7 |
| #2 | Runge Walter | 5 |
| #3 | Packard Edwin A | 2 |
| #4 | Georg Cantieny | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1775323A | Carbonizing of coal | |
| US1783983A | Powdered coke product | |
| US1797796A | Method of and apparatus for carbonizing coal by the low-temperature process | |
| US1783982A | Processing of coal and product thereof | |
| US1805109A | Processing of coal | |
| US1669024A | Carbonization of coal | |
| US1669023A | Carbonization of coal | |
| US1751127A | Rotary retort, kiln, or drum | |
| CA288288A | Carbonization method | |
| CA280559A | Coal processing | |
| CA284065A | Coal carbonizing process | |
| CA288289A | Coal processing method | |
| CA285723A | Coal processing |