Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884684 | Containment device for biological materials | Rodney A. Bernardin, Laurel A. Hanken, Thomas I. Insley | 1989-12-05 |
| 4807619 | Resilient shape-retaining fibrous filtration face mask | James F. Dyrud, Harvey J. Berg | 1989-02-28 |