Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6468396 | Dendrimeric polymers for the production of paper and board | Marco Polverari | 2002-10-22 |
| 6204396 | Method for producing calcium fulvate from humus material | Hans W. Rasmussen | 2001-03-20 |
| 6147229 | Method for producing magnesium fulvate from humus material | Hans W. Rasmussen | 2000-11-14 |
| 5468396 | Centrifugal cleaning of pulp and paper process liquids | Christine L. Lapointe | 1995-11-21 |
| 4313790 | Additives for increased retention and pitch control in paper manufacture | Robert Pelton, Henry M. Nugent | 1982-02-02 |