Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812395 | Method for detecting enzymatic activity using particle agglutination | William A. Frey | 1989-03-14 |
| 4812396 | Method for detecting enzymatic activity using particle agglutination | William A. Frey | 1989-03-14 |