Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5716778 | Concentrating immunochemical test device and method | Litai Weng, Pyare Khanna, Edwin F. Ullman | 1998-02-10 |
| 4879215 | Concentrating immunochemical test strip | Litai Weng, Pyare Khanna, Edwin F. Ullman | 1989-11-07 |
| 4740468 | Concentrating immunochemical test device and method | Litai Weng, Pyare Khanna, Edwin F. Ullman | 1988-04-26 |