Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5472907 | Method of manufacturing an optoelectronic semiconductor device | Johannes J. M. Binsma | 1995-12-05 |
| 5001387 | Electric lamp and lamp cap | — | 1991-03-19 |
| 4920297 | Electric lamp | Pierre L. L. M. Derks, Cornelis Penning | 1990-04-24 |
| 4404491 | Electric incandescent lamp | Gustaaf F. R. Siaens | 1983-09-13 |