Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889605 | Plasma pinch system | Ralph H. Lovberg | 1989-12-26 |
| 4871559 | Methods for preservation of foodstuffs | Joseph E. Dunn, R. Wayne Clark, Jay S. Pearlman, Keith Boyer, Fraincois Painchaud +1 more | 1989-10-03 |
| 4867796 | Photodecontamination of surfaces | Keith Boyer | 1989-09-19 |