| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | Germany | 3 | |
| #3 | France | 3 | |
| #4 | Denmark | 2 | |
| #5 | Canada | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Spain | 1 | |
| #8 | Ireland | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology | |
| #3 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Building materials | |
| #2 | Climate change mitigation in goods production | |
| #3 | Furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | De Desvres Compagnie Des Portl | 1 |
| #2 | Boulogne-Sur-Mer Societe Anony | 1 |
| #3 | Pierre Coiffu | 1 |
| #4 | Coiffu Pierre | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB481954A | Improvements relating to cement | |
| GB415985A | Improvements in the manufacture of cement | |
| IE13566L | Cement | |
| US2061140A | Manufacture of cement | |
| GB409166A | Improvements in the manufacture of cement | |
| DE600576C | Process for the production of colored Portland cement clinkers from raw materials that are low in magnesia | |
| DE641541C | Process for the production of colorless (white) cements | |
| DE641122C | Process and device for the production of colorless (white) cements | |
| CA432483A | Cement manufacture |