Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6338803 | Process for treating waste water containing hydrofluoric acid and mixed acid etchant waste | Deon Eugene Campbell, Dustin K. James, Jereme Francis | 2002-01-15 |
| 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, Daniel A. Batzel | 1997-08-19 |
| 4859384 | Novel polyamide reverse osmosis membranes | Richard F. Fibiger, Ja-Young Koo, David J. Forgach, Robert J. Petersen, Donald L. Schmidt +1 more | 1989-08-22 |
| 4769148 | Novel polyamide reverse osmosis membranes | Richard F. Fibiger, Ja-Young Koo, David J. Forgach, Robert J. Petersen, Donald L. Schmidt +1 more | 1988-09-06 |