| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 7 | |
| #2 | Switzerland | 2 | |
| #3 | Germany | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Spain | 2 | |
| #6 | Italy | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Details of furnaces | |
| #2 | Casings for combustion chambers | |
| #3 | Fluid fuel combustion | |
| #4 | Cremation furnaces | |
| #5 | Steam generation | |
| #6 | Furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hartmann Michel | 4 |
| #2 | Andre Hartmann | 2 |
| #3 | Hartmann Michel Louis | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0086693A1 | Sealing device for a tunnel oven, wagon and tunnel oven for this sealing device | |
| FR2485711A1 | SEALED CLOSURE DEVICE FOR HYDRAULIC CIRCUIT FURNACE TUNNEL AND COUPLING FOR HYDRAULIC CIRCUIT | |
| FR2232966A5 | Combustion air cooled gas burner - coaxial casing, inner wall and partition ensure smooth flow | |
| FR2116721A5 | Combine wall and resistance heating element - self supporting structu for furnaces |