| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | Belgium | 2 | |
| #3 | Switzerland | 2 | |
| #4 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Electrical machinery and energy | |
| #3 | Materials and metallurgy | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Details of furnaces | |
| #2 | Special electric heating or lighting | |
| #3 | Metal tempering | |
| #4 | Furnaces | |
| #5 | Railway systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mueller Josef | 3 |
| #2 | Haftung Wistra Ofenbau Gesells | 2 |
| #3 | Riemer Willibald | 1 |
| #4 | Eisenmenger Friedrich | 1 |
| #5 | Eisenmenger Dipl-Ing Friedrich | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB870556A | Process for the continuous heat treatment of elongated iron or steel articles | |
| GB766490A | Arrangement for drawing chain-driven waggons | |
| DE1010443B | Tunnel furnace with a high combustion chamber for firing ceramic goods |