Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884631 | Forced air heat sink apparatus | — | 1989-12-05 |
| 4874681 | Woven-grid sealed quasi-bipolar lead-acid battery construction and fabricating method | — | 1989-10-17 |
| 4873161 | Positive paste with lead-coated glass fibers | Dean B. Edwards | 1989-10-10 |
| 4873460 | Monolithic transistor gate energy recovery system | — | 1989-10-10 |