Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923776 | Toner particles for electrophotographic copying and processes for their preparation | Gunnar Mattson, Sten Porrvik, Goran Sundstrom | 1990-05-08 |
| 4794065 | Toner particles for electrophotographic copying and processes for their preparation | Gunnar Mattson, Sten Porrvik, Goran Sundstrom | 1988-12-27 |