Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7540938 | Method and system for energy savings in TMP by high temperature LC/MC refining of pulp | — | 2009-06-02 |
| 6145766 | Screw device for dewatering and defibrating ligno-cellulose material | Peter Mraz | 2000-11-14 |
| 5383608 | Twin conical refiner with dual ribbon feeders | Karl T. G. Dahiqvist, Franz Haider, Gregory R. Kohler, Josef Krasser, William F. Lahner, III +5 more | 1995-01-24 |
| 5335865 | Two-stage variable intensity refiner | Gregory R. Kohler, William F. Lahner, III, Karl T. G. Dahlqvist | 1994-08-09 |
| 4253345 | Distributor gear assembly, particularly for double screw presses | — | 1981-03-03 |