Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696292 | Process for producing quarternary ammonium compounds | N. Ben Martin | 1997-12-09 |
| 5667694 | Process for the removal of heavy metals from aqueous systems using organoclays | Stephen J. Kemnetz | 1997-09-16 |
| 5634969 | Organoclay compositions | Barbara Campbell, Araxi Chiavoni, Edward D. Magauran | 1997-06-03 |