Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5133832 | Process and system for preparation of waste paper stock with short and long fiber fractionation | — | 1992-07-28 |
| 4663030 | Disk rotor for selectifier screen | David E. Chupka, Jimmy L. Winkler, Larry D. Markham | 1987-05-05 |