Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810463 | Process for forming sintered ceramic articles | Yao-Jyh Robert Huang | 1989-03-07 |
| 4810926 | Impregnated thermionic cathode | Edward J. Daniszewski, Joseph J. Hutta | 1989-03-07 |