Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6214465 | Floor absorbent granular product comprising kaokin clay and cellulose fibers | Edward G. Knapick, Brent Willemsen | 2001-04-10 |
| 6019873 | Floor absorbent granular product | Edward G. Knapick, Brent Willemsen, Michael C. Bonin | 2000-02-01 |
| 5951822 | Apparatus for making granular material | Edward G. Knapick, Brent Willemsen | 1999-09-14 |
| 5888345 | Absorbent granular product | Edward G. Knapick, Brent Willemsen | 1999-03-30 |
| 5882480 | Process for making granular material | Edward G. Knapick, Brent Willemsen | 1999-03-16 |
| 5807465 | Granular material containing recycled paper components | Edward G. Knapick, Brent Willemsen | 1998-09-15 |
| 5728270 | Process for making the absorbent granular material | Edward G. Knapick, Brent Willemsen | 1998-03-17 |
| 5622600 | Dyed particulate or granular materials from recycled paper and process for making the materials | Kim Smith, Edward G. Knapick, Brent Willemsen | 1997-04-22 |
| 5593542 | Method for recovering fiber from effluent streams | Brent Willemsen, Venkat B. Maroju, Andres Martiny | 1997-01-14 |