Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841778 | Optical fiber sensor technique for strain measurement | Michael A. Butler | 1989-06-27 |
| 4829020 | Substrate solder barriers for semiconductor epilayer growth | Timothy Drummond, Thomas E. Zipperian | 1989-05-09 |