Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680320 | Method of quantifying performance chemicals in pulp and paper | Ulla Helmer, Lars Renberg | 1997-10-21 |
| 5680321 | Method of quantifying the properties of paper | Ulla Helmer, Lars Renberg | 1997-10-21 |
| 5638284 | Method of quantifying the wet strength of paper | Ulla Helmer, Lars Renberg | 1997-06-10 |