| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | Belgium | 4 | |
| #3 | Switzerland | 2 | |
| #4 | Germany | 2 | |
| #5 | France | 2 | |
| #6 | United Kingdom | 2 | |
| #7 | Austria | 1 | |
| #8 | Denmark | 1 | |
| #9 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Cyclones |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bourdale Lucien | 8 |
| #2 | Chatellard Marc | 5 |
| #3 | Bourdale Lucien R J | 3 |
| #4 | Lucien Bourdale | 2 |
| #5 | Marc Chatellard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA939618A | Procede et dispositif pour la filtration d'un fluide charge de particules | |
| ES262150A1 | Improvements introduced in the manufacture of filtering elements of the type of surface (Machine-translation by Google Translate, not legally binding) | |
| DE1258831B | Filter insert | |
| GB859333A | Filtering centrifugal separators | |
| CA744225A | Cartridge filter | |
| CA641427A | Filtering centrifugal separators | |
| CA672552A | Filtering elements and filters comprising their application |