Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5906994 | Preparation and use of contrast agents | John D. Franolic, Jeffrey R. Long, Michael Droege, Shannan Downey | 1999-05-25 |
| 5804161 | Contrast agents | Jeffrey R. Long, Xhiping Xheng, Shi-Bao Yu, Michael Droege, William A. Sanderson | 1998-09-08 |
| 5717121 | Preparation and use of contrast agents | John D. Franolic, Jeffrey R. Long, Michael Droege, Shannan Downey | 1998-02-10 |