Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5459078 | Methods and reagents for performing ion-capture digoxin assays | Yi-Her Jou, Stephen D. Stroupe, Janina Adamczyk, Daniel S. Berry, Rosario M. Fico +1 more | 1995-10-17 |
| 5245026 | Metal containing 8-hydroxyquinoline chelating agents | David K. Johnson | 1993-09-14 |
| 5227474 | Bifunctional chelating agents | David K. Johnson | 1993-07-13 |
| 5057302 | Bifunctional chelating agents | David K. Johnson | 1991-10-15 |
| 5021567 | 8-hydroxyquinoline chelating agents | David K. Johnson | 1991-06-04 |