| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 22 | |
| #2 | France | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Thermal processes | |
| #3 | Electrical machinery and energy | |
| #4 | Basic materials chemistry | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Metal tempering | |
| #2 | Special electric heating or lighting | |
| #3 | Furnaces | |
| #4 | Details of furnaces | |
| #5 | Building materials | |
| #6 | Gas, coke and tar production | |
| #7 | Cables and insulators | |
| #8 | Shaping clay | |
| #9 | Inorganic treatment materials | |
| #10 | Burners |
| # | Name | Total Patents |
|---|---|---|
| #1 | Meiser Franz Karl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB146269A | Process and furnace for the burning of tarcontaining bodies |