Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6313285 | Purification of plasmid DNA | Michelle D. Butler, David W. Kahn, Marjorie E. Winkler | 2001-11-06 |
| 6140128 | Preparation of calcium phosphate transfectacons | David W. Kahn, Marjorie E. Winkler | 2000-10-31 |