| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | Austria | 6 | |
| #3 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Packaging and shipping | |
| #3 | Chemical engineering | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Furnaces | |
| #2 | Transport or storage devices | |
| #3 | Details of furnaces | |
| #4 | Drying solid materials by removing liquid | |
| #5 | Railway shifting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Koschel Werner | 14 |
| #2 | Recknagel Carl | 2 |
| #3 | Kapfer Johann | 2 |
| #4 | Anschuetz Rudolf | 1 |
| #5 | Kleinwietfeld Alois | 1 |
| #6 | Karl Recknagel | 1 |
| #7 | Recknagel Karl | 1 |
| #8 | Werner Koschel | 1 |
| #9 | Leibl Edmund | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1925953A1 | Tunnel kiln for the firing of ceramic obj- - ects | |
| DE1812148A1 | Tile tunnel furnace | |
| DE1803364A1 | Uniformly and rapidly heating up articles for roasting - in a tunnel kiln |