Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856878 | Magnetic configuration for Faraday rotators | Allan Heiney | 1989-08-15 |
| 4840464 | Optical isolator employing a germanium-arsenic-selenium composition | — | 1989-06-20 |
| 4804256 | Faraday rotators using a movable optical element | — | 1989-02-14 |