| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 22 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Civil engineering | |
| #3 | Mechanical elements | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Fluid heaters | |
| #2 | Domestic plumbing installations | |
| #3 | Venting or aerating devices | |
| #4 | Burners | |
| #5 | Casings for combustion chambers | |
| #6 | Spraying devices | |
| #7 | Water-closets with flushing devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Prost Ernest-Albert | 22 |