| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 7 | |
| #2 | Germany | 3 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Thermal processes | |
| #3 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Producer gas production | |
| #2 | Heat-exchanger without contact | |
| #3 | Gas, coke and tar production | |
| #4 | Metal tempering | |
| #5 | Furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rehmann Hugo | 8 |
| #2 | Bangert Heinrich | 3 |
| #3 | Hugo Rehmann | 1 |
| #4 | Heinrich Bangert | 1 |
| #5 | Hylander Carl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB191322585A | Improvements in and relating to Regenerative Furnaces. |