Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879215 | Concentrating immunochemical test strip | Litai Weng, David Calderhead, Edwin F. Ullman | 1989-11-07 |
| 4857453 | Immunoassay device | Edwin F. Ullman, Rohan Peries | 1989-08-15 |
| 4857455 | Method for the determination of peroxidase using fluorogenic substrates | Chiu C. Chang, Edwin F. Ullman | 1989-08-15 |
| 4847195 | Glucose-6-phosphate dehydrogenase conjugates useful in polyiodothyronine assays | Kirk Schulkamp | 1989-07-11 |
| 4816391 | Amine stabilized aminoglycoside formulations | — | 1989-03-28 |
| 4798804 | Serum pretreatment in digoxin immunoassay | Fred Pearlman | 1989-01-17 |