| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 10 | |
| #2 | United States | 3 | |
| #3 | Germany | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Supplying fuel to combustion device | |
| #2 | Controlling combustion | |
| #3 | Containers for goods storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Prat Louis | 10 |
| #2 | Louis Prat | 2 |
| #3 | Prat Emile | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1465683A | Induced-draft device | |
| GB137256A | Improvements in induced draught apparatus for furnaces | |
| US1410718A | Locomotive draft device | |
| US1151611A | Chimney draft device. |