| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | France | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | Italy | 2 | |
| #5 | Czechoslovakia | 1 | |
| #6 | Norway | 1 | |
| #7 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Building materials | |
| #2 | Furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hakenberg Walther Dipl Ing | 3 |
| #2 | Krueger Benno Ing Grad | 3 |
| #3 | Krueger Benno | 2 |
| #4 | Hakenberg Walther | 2 |
| #5 | Seitz Holger Dr Ing | 1 |
| #6 | Kruger B | 1 |
| #7 | Hakenberg Walter | 1 |
| #8 | Kruger Benno | 1 |
| #9 | Hakenberg W | 1 |
| #10 | Seitz Holger | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3025147A1 | SHAFT OVENS AND METHOD FOR INPUTING OXYGEN IN SUCH A SHAFT OVEN | |
| DE2907944A1 | METHOD FOR TREATING FINE-GRAINED EARTH ALKALIOXIDES, ESPECIALLY FINE-GRAINED CAUSTICALLY BURNED DOLOMITE | |
| DE2739345A1 | PROCESS FOR THE PROCESSING OF FINE-GRAINED CALCIUM EARTH, IN PARTICULAR OF FINE-GRAIN CAUSTIC FIRED DOLOMITE ARISING IN SHAFT FURNACES |