Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6074983 | Method for making spherical adsorbent particles | Leonard H. Smiley, Reinhard Witt | 2000-06-13 |
| 5998329 | Method for making spherical adsorbent particles | Leonard H. Smiley, Reinhard Witt | 1999-12-07 |