| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | France | 6 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Organic fine chemistry | |
| #3 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Fuels | |
| #2 | Gas, coke and tar production | |
| #3 | Acyclic or carbocyclic compounds | |
| #4 | Ignition and extinguishing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gieseler Dr Kurt | 4 |
| #2 | Seiffert Oskar | 1 |
| #3 | Grimm Franz | 1 |
| #4 | Krueger Dr-Ing Hugo | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB517822A | Process for the production of pure hydrocarbons of the benzene series by distillation and apparatus for carrying out this process | |
| DE740101C | Fire lighter containing coal | |
| DE705860C | Process for coking pitch | |
| DE697325C | Vertical shaft furnace with gradual external heating | |
| DE692629C | Vertical shaft furnace with step-by-step external heating for coking pitch from tars | |
| DE744879C | Process for the production of pure toluene from an enriched toluene fraction |