| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 1 | |
| #2 | China | 1 | |
| #3 | Czechia | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | France | 1 | |
| #6 | Hungary | 1 | |
| #7 | Norway | 1 | |
| #8 | Poland | 1 | |
| #9 | Romania | 1 | |
| #10 | United States | 1 | |
| #11 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Combustion residues removal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Beirens Marcel | 9 |
| #2 | Beirens M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2756606A1 | Modular interlocking metal conduit, especially for smoke exhaust |