Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853754 | Semiconductor device having cold cathode | Gerardus G. P. Van Gorkom | 1989-08-01 |
HB
Henri F. J. van 't Blik
Overall (1989): #106,012 of 140,708Top 80%
1
Patents 1989