Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5532308 | Method for improving retention and drainage characteristics in alkaline papermaking | Michael Schuster, John C. Harrington, Wen P. Liao | 1996-07-02 |
| 5415740 | Method for improving retention and drainage characteristics in alkaline papermaking | Michael Schuster, John C. Harrington, Wen P. Liao | 1995-05-16 |
| 5269942 | Quaternized polyvinylamines for deinking loop clarification | John C. Harrington, Jen-Chi Chen | 1993-12-14 |