Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5605623 | Perfusive chromatography | Noubar B. Afeyan, Fred E. Regnier | 1997-02-25 |
| 5597497 | Switch mechanism for operating a plasma arc torch, other tools or weapons | James Dean, E. Hubbard Yonkers | 1997-01-28 |