Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9108159 | Apparatus for producing surface enhanced membrane | Hans Beer, Lothar Knoechelmann, Duane Piechocki | 2015-08-18 |
| 7807475 | Process for producing surface enhanced membrane | Hans Beer, Lothar Knoechelmann, Duane Piechocki | 2010-10-05 |
| 5628960 | Composite cellulose nitrate membrane on polyester support | Hans Beer | 1997-05-13 |