Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7314556 | Filter disc with panel sectors | Keith Sheets, Mark Entz | 2008-01-01 |
| 5782605 | Impeller for separating a conveyed stream of material | — | 1998-07-21 |
| 5626300 | Disc refiner with conical ribbon feeder | — | 1997-05-06 |
| 5383608 | Twin conical refiner with dual ribbon feeders | Karl T. G. Dahiqvist, Franz Haider, Josef Krasser, William F. Lahner, III, Alfred Lang +5 more | 1995-01-24 |
| 5379881 | Stream splitting apparatus | — | 1995-01-10 |
| 5335865 | Two-stage variable intensity refiner | William F. Lahner, III, Heinrich Munster, Karl T. G. Dahlqvist | 1994-08-09 |
| 5248099 | Three zone multiple intensity refiner | William F. Lahner, III | 1993-09-28 |
| 5181664 | Grinding plate with angled outer bars | — | 1993-01-26 |
| 5119995 | Keyway for refiner disc | Gary L. Jackson | 1992-06-09 |
| 5076892 | Apparatus for pressurized refining of lignocellulose material | Chester D. Fisher, Randall Lee Musselman, Gary W. Allshouse, Heinz O. Backhust, William F. Lahner, III | 1991-12-31 |