Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479789 | Manufacture of screen plate with screen slots obtained by laser beam cutting | Jan Backman, Roine Andersson | 2002-11-12 |
| 6425486 | Cylindrical screen and a method of manufacturing it | Roine Andersson, Jan Backman | 2002-07-30 |
| 5337899 | Hydrocyclone plant | Roine Andersson | 1994-08-16 |
| 4211643 | Hydrocyclone separator | Rune H. Frykhult | 1980-07-08 |