Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6231054 | Elastomeric sliding seal for vacuum bellows | Ernest E. Allen, Robert J. Mitchell, Perry J. I. Justesen | 2001-05-15 |
| 6065499 | Lateral stress relief mechanism for vacuum bellows | Gary J. Rosen, Allan D. Weed, Ernest E. Allen, Victor M. Benveniste, Perry J. I. Justesen | 2000-05-23 |