Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5346627 | Method for removing metals from a fluid stream | Kristine S. Siefert, Pek L. Choo, John W. Sparapany | 1994-09-13 |
| 5326479 | Treatment of pulp and paper wastewater with reducing agent and a polymer for color removal | Jawed M. Sarkar, Amy M. Tseng | 1994-07-05 |