| Submitted | Patent Number | Granted | Description |
| 20/04/1897 | 127705 | Blowback Pistol | |
| 22/05/1900 | 150087 | Short-recoil Pistol | |
| 21/09/1900 | 151647 | Machine Gun | |
| 21/09/1900 | 151648 | Machine Gun | |
| 18/05/1900 | 149967 | Semi-auto Rifle | |
| 12/05/1902 | 163375 | Blowback Pistol | |
| 30/09/1902 | 165862 | Semi-auto Rifle | |
| 09/05/1905 | 184656 | Blowback Pistol | |
| 03/05/1906 | 192011 | Pistol Improvement | |
| ??/??/1908 | 20/02/1909 | Blowback Pistol | |
| 229828 | Short-recoil Pistol |
A special thanks to Lars for his invaluable assistance researching the Belgian patent archive.