Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5026455 | Method for automatic determination of the dry pulp content, the infiltration capacity and the wire retention of a pulp suspension | Pekka Lehtikoski | 1991-06-25 |
| D307397 | Paper testing machine | — | 1990-04-24 |
| 4771631 | Device for measuring the moisture content and basic weight of paper | Martti Nissinen | 1988-09-20 |
| 4678325 | Apparatus for measuring optical properties of paper | Martti Nissinen | 1987-07-07 |
| 4596152 | Method of measuring tear resistance of paper and apparatus for applying the method | Martti Nissinen | 1986-06-24 |
| 4550613 | Apparatus for automatic determination of the tensile strength properties of a sheet of paper | Martti Nissinen | 1985-11-05 |