Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326449 | Composite membrane | — | 1994-07-05 |
| 5310469 | Biosensor with a membrane containing biologically active material | Susan B. Brontman, Jill M. Geist, R. Hayes Helgren, Timothy P. Henning, Kenneth S. Johnson +3 more | 1994-05-10 |
| 5283186 | Preparation of a compressed membrane containing immobilized biologically acting material | Kenneth S. Johnson | 1994-02-01 |