Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889812 | Bioreactor apparatus | Perry W. Guinn, Robert A. Bedient, Martin Greeley | 1989-12-26 |
| 4821769 | Valve monitor and method | Bruce A. Peterson, William G. Preston, Jr. | 1989-04-18 |
| 4812239 | Dry chemical mix system for hemodialysis | Charles B. Willock | 1989-03-14 |