Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868459 | Method of and circuit for brightness and temperature-dependent control of an LCD illuminator | Eckhard Walters | 1989-09-19 |
LD
Ludwig Dennerlein
Overall (1989): #82,808 of 140,708Top 60%
1
Patents 1989