Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6264918 | Hollow microcapsules for methods of ultrasound imaging | Richard A. Johnson | 2001-07-24 |
| 6068600 | Use of hollow microcapsules | Richard A. Johnson | 2000-05-30 |
| 6017310 | Use of hollow microcapsules | Richard A. Johnson, Nicolaas de Jong | 2000-01-25 |