Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7232503 | Method in internal sizing of liquid packaging board and internal size | Kenneth Sundberg, Claes Zetter | 2007-06-19 |
| 7211608 | Method for pretreatment of filler, modified filler with a hydrophobic polymer and use of the hydrophobic polymer | Mari Niinikoski, Olof Malmstrom, Kenneth Sundberg, Claes Zetter | 2007-05-01 |
| 6939441 | Stock size for paper or board manufacture, method for preparation of size, use of size | Mari Niinikoski | 2005-09-06 |
| 6749722 | Method of making sized paper, a sized paper grade, and a paper size | Olof Malmstrom, Raija Savolainen, Ari Teijo, Claes Zetter | 2004-06-15 |
| 5961708 | Internal sizing composition for paper | Claes Zetter, Olof Malmstrom | 1999-10-05 |
| 4319116 | Welding using soap shielding | Markku Kauppi, Juhani Niinivaara, by Marjatta Nurminen, administrator | 1982-03-09 |