Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4377481 | Blended, polymeric, matrix membrane and process of making and using same | — | 1983-03-22 |
| 4302334 | Microporous polymeric membrane | Leos J. Zeman | 1981-11-24 |
| 4278777 | Grafted polymers and method of preparing and using same | Laxmidas R. Patel | 1981-07-14 |
| 4248913 | Process for preparing a membrane | Leos J. Zeman | 1981-02-03 |