Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6433476 | EL lamp with heater electrode | Walter J. Pacicrek, William A. Coghlan | 2002-08-13 |
| 5806954 | Moving pointer with edgewise EL lamp | James H. Butt, Robert J. Krafcik, Edward L. Kinnally | 1998-09-15 |