Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812385 | Recording elements comprising write-once thin film alloy layers | Kee-Chuan Pan, Yuan-Sheng Tyan | 1989-03-14 |
DP
Donald R. Preuss
Overall (1989): #119,108 of 140,708Top 85%
1
Patents 1989