Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5238538 | Method for deinking recycled fiber by applying direct current electric field | Jeffery S. Hsieh | 1993-08-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5238538 | Method for deinking recycled fiber by applying direct current electric field | Jeffery S. Hsieh | 1993-08-24 |