Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5045784 | Tachometer noise reduction system using a pickup coil to cancel the noise from the tachometer signal | Clifford D. Dax | 1991-09-03 |
| 4498156 | Electrochromic nonvolatile memory device | — | 1985-02-05 |
| 4432612 | Phthalocyanine electrochromic display with improved cycle life | Margie M. Nicholson | 1984-02-21 |