Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE42428 | Method of and device for generating an image having a desired brightness | Douglas A. Stanton, Adrianus Johannes Stephanus Maria De Vaan | 2011-06-07 |
| 6905216 | Method of and device for generating an image having a desired brightness | Douglas A. Stanton, Adrianus Johannes Stephanus Maria De Vaan | 2005-06-14 |
| 6631995 | Method of and device for generating an image having a desired brightness | Douglas A. Stanton, Adrianus Johannes Stephanus Maria De Vaan | 2003-10-14 |
| 5889614 | Presentation system with overhead projector | Louis-Marie H. Cobben | 1999-03-30 |
| 5757341 | Color liquid crystal projection display systems | John A. Clarke, Allan Carmichael | 1998-05-26 |
| 5748374 | Picture display device | Jacobus H. M. Neijzen, Adrianus J. S. M. De Vaan | 1998-05-05 |
| 5580144 | Image projection device with suppressed moire | — | 1996-12-03 |
| 5267045 | Multi-standard display device with scan conversion circuit | — | 1993-11-30 |
| 5046837 | Illumination system | Wilhelmus Adrianus Gerardus Timmers | 1991-09-10 |
| 4958152 | Display device and method of driving such a device | Karel E. Kuijk | 1990-09-18 |
| 4908609 | Color display device | — | 1990-03-13 |
| 4740785 | Electroscopic picture display device having selective display of local information | Henricus F. A. de Leeuw | 1988-04-26 |
| 4725832 | Electroscopic picture display arrangement | Jean H. J. Lorteije, Ties S. Te Velde, Henricus F. A. de Leeuw, Karel E. Kuijk | 1988-02-16 |
| 4567522 | Line synchronizing circuit for a picture display device | Frederick Maria Boekhorst | 1986-01-28 |