Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4652794 | Electroluminescent device having a resistive backing layer | John L. Williams, John Robert Siddle | 1987-03-24 |
| 4529885 | Direct current electroluminescent devices | Surjit S. Chadha, Weng Y Leong | 1985-07-16 |