Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5001388 | Double-ended lamp including lamp cap at each end | Eduard J. P. Janssen | 1991-03-19 |
| 4894519 | Electric cooker unit and electric cooking apparatus provided with it | — | 1990-01-16 |
| 4857709 | Electric cooking unit having an electric lamp with a helical filament contact with the lamp vessel wall | Eduard J. P. Janssen | 1989-08-15 |
| 4728847 | Electric lamp having an envelope with an intermediate zirconium oxide coated layer | Leo F. M. Ooms | 1988-03-01 |
| 4689519 | Electric lamp having an outwardly extending protrusion | Leo F. M. Ooms | 1987-08-25 |
| 4570104 | Electric lamp having a fuse in a feed-through molding | Eduard J. P. Janssen | 1986-02-11 |
| 4495436 | Electric lamp having a lamp cap which is connected without cement | — | 1985-01-22 |
| 4414484 | Electric incandescent lamp | Stephanus J. Claessens | 1983-11-08 |
| 4396858 | Halogen incandescent lamp | Gustaaf F. R. Siaens | 1983-08-02 |
| 4370587 | Lamp/reflector unit | — | 1983-01-25 |
| 4367428 | Halogen incandescent lamp | Gustaaf F. R. Siaens | 1983-01-04 |
| 4331900 | Halogen incandescent lamp | Gustaaf F. R. Siaens | 1982-05-25 |
| 4314176 | Halogen incandescent lamp | — | 1982-02-02 |