Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874090 | Self-seal sterilization pouch | — | 1989-10-17 |
| 4839291 | Disposable biological indicator test pack for monitoring steam and ethylene oxide sterilization cycles | Jon D. Welsh | 1989-06-13 |