Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849695 | Null-detection magnetometers | Juan I. Coicolea | 1989-07-18 |
| 4816125 | IC processed piezoelectric microphone | Eun Sok Kim | 1989-03-28 |
| 4801883 | Integrated-circuit one-way isolation coupler incorporating one or several carrier-domain magnetometers | Juan I. Goicolea | 1989-01-31 |