Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4402568 | Method and apparatus for an optical four-gate coupler | Herbert Michel, Hans-Hermann Witte | 1983-09-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4402568 | Method and apparatus for an optical four-gate coupler | Herbert Michel, Hans-Hermann Witte | 1983-09-06 |