| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | Canada | 2 | |
| #4 | United States | 2 | |
| #5 | Austria | 1 | |
| #6 | Switzerland | 1 | |
| #7 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Casting metal | |
| #2 | Pig-iron processing | |
| #3 | Metal production and refining | |
| #4 | Foundry moulding | |
| #5 | Shaping clay | |
| #6 | Presses | |
| #7 | Unspecified technologies | |
| #8 | Details of furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Doetsch Lorenz | 7 |
| #2 | Retrayt Jean-Louis | 4 |
| #3 | Kull Bernd | 3 |
| #4 | Schrader Peter | 3 |
| #5 | Dotsch Lorenz | 3 |
| #6 | Hoeffgen Hans | 3 |
| #7 | Hoeffgen Hans Dipl Ing | 2 |
| #8 | Hoefer Karl-Heinz | 2 |
| #9 | Grabner Bernd Dr | 1 |
| #10 | Brands Eugen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3743383A1 | Stopper-like device for discharge regulation of the pouring outlet (nozzle) of a vessel receiving metallurgical melt | |
| DE3717840A1 | FIREPROOF CERAMIC MOLDED BODY | |
| DE3716388C1 | Gas flushing stone | |
| DE3642201C1 | Refractory ceramic component | |
| DE3625420A1 | Device for manufacturing moulded ceramic parts | |
| ATA262883A | Fireproof stone, especially gas pulse stone |