| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | Spain | 4 | |
| #3 | United States | 4 | |
| #4 | Japan | 3 | |
| #5 | Netherlands | 3 | |
| #6 | France | 2 | |
| #7 | United Kingdom | 2 | |
| #8 | India | 2 | |
| #9 | Austria | 1 | |
| #10 | Canada | 1 | |
| #11 | Czechoslovakia | 1 | |
| #12 | Portugal | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Gas, coke and tar production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dix Kurt | 9 |
| #2 | Hoffmann Werner | 3 |
| #3 | Kuruto Deitsukusu | 3 |
| #4 | Freisewinkel Jurgen | 1 |
| #5 | Berunaa Hofuman | 1 |
| #6 | Dix Kurt Ernst | 1 |
| #7 | Hoffmann W | 1 |
| #8 | Herberholz August | 1 |
| #9 | Dix K | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2622889A1 | Coke oven door seal - with spring loaded seal frame on door frame acting against door body knife edge | |
| DE2601707A1 | LOCK FOR A COOK OVEN CHAMBER | |
| DE2601708A1 | LOCK FOR A HORIZONTAL COOK OVEN CHAMBER | |
| DE2532097A1 | OVEN CHAMBER LOCK FOR A COK OVEN | |
| ES417938A1 | Coke oven door |