Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859384 | Novel polyamide reverse osmosis membranes | Richard F. Fibiger, Ja-Young Koo, Robert J. Petersen, Donald L. Schmidt, Ritchie A. Wessling +1 more | 1989-08-22 |
| 4828700 | Rejection enhancing coatings for reverse osmosis membranes | Richard F. Fibiger, Michael J. Colucci, Ritchie A. Wessling, Donald L. Schmidt | 1989-05-09 |