Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4572618 | Method for the preparation of photochromic insulating crystals | Jose L. Boldu, Yok Chen, Victor M. Orera | 1986-02-25 |
| 4264914 | Wide-band-gap, alkaline-earth-oxide semiconductor and devices utilizing same | Yok Chen, Robert H. Kernohan | 1981-04-28 |