Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5842150 | Method of determing the organic content in pulp and paper mill effulents | Anders Sparén | 1998-11-24 |
| 5680320 | Method of quantifying performance chemicals in pulp and paper | Ulla Helmer, Ralf Olsson | 1997-10-21 |
| 5680321 | Method of quantifying the properties of paper | Ulla Helmer, Ralf Olsson | 1997-10-21 |
| 5638284 | Method of quantifying the wet strength of paper | Ulla Helmer, Ralf Olsson | 1997-06-10 |
| 5290405 | NaOH production from ceramic electrolytic cell | Ashok V. Joshi, Meilin Liu, Alf Bjorseth | 1994-03-01 |