| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | Canada | 2 | |
| #3 | German Democratic Republic | 2 | |
| #4 | Hungary | 2 | |
| #5 | United States | 2 | |
| #6 | Germany | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | France | 1 | |
| #9 | United Kingdom | 1 | |
| #10 | Poland | 1 | |
| #11 | Turkey | 1 | |
| #12 | WIPO (World Intellectual Property Organization) | 1 | |
| #13 | Yugoslavia (Serbia and Montenegro) | 1 | |
| #14 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Reduction of greenhouse gas emissions | |
| #2 | Gas, coke and tar production | |
| #3 | Fuels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Koppelman Edward | 16 |
| #2 | Koppelmann Edward | 1 |
| #3 | Koppelman E | 1 |
| #4 | Edward Koppelman | 1 |
| Publication | Filing date | Title |
|---|---|---|
| PL288493A1 | Apparatus for and method of transforming a carbonacous material by means of steam | |
| US5071447A | Apparatus and process for steam treating carbonaceous material | |
| US4728339A | Multiple hearth apparatus and process for thermal treatment of carbonaceous materials |