Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5596814 | Vented vial stopper for processing freeze-dried products | Ralph D. Zingle | 1997-01-28 |
| 5507847 | ULPA filter | Michael G. Sutsko, Douglas B. McKenna | 1996-04-16 |
| 5395429 | Diffusion panel for use in ultra-clean environments and method for employing same | Michael G. Sutsko, Douglas B. McKenna | 1995-03-07 |