| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 17 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Materials and metallurgy | |
| #3 | Machines | |
| #4 | Organic fine chemistry | |
| #5 | Basic materials chemistry | |
| #6 | Chemical engineering | |
| #7 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Furnaces | |
| #2 | Building materials | |
| #3 | Details of furnaces | |
| #4 | Shaping clay | |
| #5 | Structural elements | |
| #6 | Heterocyclic compounds | |
| #7 | Drying solid materials by removing liquid | |
| #8 | Producer gas production | |
| #9 | Special furnaces and ovens | |
| #10 | Milling |
| Publication | Filing date | Title |
|---|---|---|
| GB732560A | Apparatus for tamping ceramic powders |