Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830696 | Treatment of spent pulping liquor with lignin separation to recover alkali pulping chemicals in manufacture of paper pulp | El-Sayed A. Abdel-Aal | 2004-12-14 |
| 6739456 | Apparatus and methods for separating particles | Spyros A. Svoronos, H. Steven Crouch, Kevin W. Powers, Gary W. Scheiffele, Rachel Anna Worthen +1 more | 2004-05-25 |