Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681920 | Process for production of a polysuccinimide and derivatives thereof | Barney Vallino | 1997-10-28 |
| 5658460 | Use of inorganic ammonium cation salts to maintain the flux and salt rejection characteristics of reverse osmosis and nanofiltration membranes during drying | John E. Cadotte, Thomas F. Stocker | 1997-08-19 |