Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622600 | Dyed particulate or granular materials from recycled paper and process for making the materials | Edward G. Knapick, Brent Willemsen, Ernest P. Wolfer | 1997-04-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622600 | Dyed particulate or granular materials from recycled paper and process for making the materials | Edward G. Knapick, Brent Willemsen, Ernest P. Wolfer | 1997-04-22 |