Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885660 | Electrolytic capacitor for use in a wide temperature range and high voltages | — | 1989-12-05 |
| 4861439 | Method of improving the capacitance of anodized aluminum foil | James L. Stevens | 1989-08-29 |
| 4860169 | Long chain carboxylic acids for very high voltage aluminum electrolytic capacitors | — | 1989-08-22 |
| 4835660 | Use of choline as the cation in capacitor for electrolytes | — | 1989-05-30 |