Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5712485 | Radiation-dose indicator and lamp and tanning apparatus comprising such a radiation-dose indicator | Dirk Jan Broer, Johannes A. F. Peek | 1998-01-27 |
| 5686153 | Optical temperature indicator | Dirk Jan Broer | 1997-11-11 |
| 5676879 | Molecularly oriented synthetic resin composition | Dirk Jan Broer, Grietje N. Mol | 1997-10-14 |
| 5649471 | Apparatus for preparing a hot beverage | Antonius Arnoldus Johannes Rademaker | 1997-07-22 |
| 5626408 | Illumination system for a color projection device and circular polarizer suitable for use in such an illumination system, and color image projection device comprising such an illumination system and circular polarizer | Dirk Jan Broer | 1997-05-06 |
| 5555113 | Liquid crystal display device with twist angle .phi. of 70.degree. to 90.degree.and alignment to polarization direction angle between .phi./2+30.degree.and .phi./2+60.degree. | Johannes Catharinus Hubertus Mulkens | 1996-09-10 |
| 5287207 | Double TN cell LCD display with different Gooch and Tarry extremes | Johannes Catharinus Hubertus Mulkens | 1994-02-15 |
| 5253074 | Temperature compensated color LCD projector | Franciscus J. M. Wortel, Peter E. Wierenga | 1993-10-12 |
| 5221978 | Liquid-crystal display device having rotationally symmetrical iso-contrast curves | Dirk Jan Broer, Johannes Catharinus Hubertus Mulkens | 1993-06-22 |
| 5210630 | Liquid-crystal display device | Dirk Jan Broer, Rifat A. M. Hikmet | 1993-05-11 |