Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6559584 | CRT with improved slotted mask | — | 2003-05-06 |
| 6489712 | CRT with improved slotted mask | Rudolf Maria Jozef Voncken, Daniel Den Engelsen | 2002-12-03 |
| 6239772 | Video moire reduction | Christaan Hentschel | 2001-05-29 |
| 5841247 | Cathode ray tube, display system incorporating same and computer including control means for display system | — | 1998-11-24 |
| 5825435 | Color cathrode ray tube and display device | Rene A. Stoffels | 1998-10-20 |
| 5813752 | UV/blue LED-phosphor device with short wave pass, long wave pass band pass and peroit filters | Barry M. Singer, Cornelis Reinder Ronda | 1998-09-29 |
| 5813753 | UV/blue led-phosphor device with efficient conversion of UV/blues light to visible light | Gerard A. Acket, Cornelis Reinder Ronda | 1998-09-29 |
| 5698939 | Display device having a display window | Johannes C. A. Van Nes, Frank Gersmann | 1997-12-16 |
| 5619094 | Color cathode ray tube and display device with reduced moire | — | 1997-04-08 |
| 5319280 | Color picture tube with reduced raster distortion and flat appearing display window | — | 1994-06-07 |
| 5209690 | Method of vapor depositing an interference filter layer on the inside of a display window, a display window, a projection cathode ray tube and a projection television apparatus | André Van Der Voort, Antonius P. van de Langenberg | 1993-05-11 |
| 5179312 | Television projection system having frame with integral cooling | Gerrit B. Gerritsen | 1993-01-12 |
| 5168351 | Short focal length video color projector employing dichroic mirror block | Ralph H. Bradley, William F. Guerinot, Jill F. Goldenberg | 1992-12-01 |
| RE34131 | Display tube having improved brightness distribution | Johannes H. M. Spruit, John A. Clarke | 1992-11-24 |
| 5099169 | Shadow mask color display tube | — | 1992-03-24 |
| 5068568 | Cathode ray tube having multilayer interference filter | Henricus M. De Vrieze, Johannes Roosen | 1991-11-26 |
| 5061993 | Projection television display device | Johannes H. M. Spruit, Johannes C. N. Rijpers | 1991-10-29 |
| 4990824 | Color cathode ray tube having interference filter with different pass bands | Johannes C. N. Rijpers, Albert Comberg, Johannes H. M. Wilting, Aart A. Van Gorkum, Franciscus A. Vollenbroek | 1991-02-05 |
| 4988203 | Device for inspecting an interference filter for a projection television display tube | Maurits R. T. Smits | 1991-01-29 |
| 4989092 | Picture display device using scan direction transposition | Terence Doyle, Matheus J. G. Lammers | 1991-01-29 |
| 4899080 | Projection television display tube with cooling means and display device having such a display tube | Gerrit B. Gerritsen, Willem M. Van Alphen | 1990-02-06 |
| 4882617 | Projection device and associated electro-optic monochrome display device with phosphor layer and interference filters | — | 1989-11-21 |
| 4822144 | Electro-optic color display including luminescent layer and interference filter | — | 1989-04-18 |
| 4807014 | Three tube color projection television system having multispot blue tube and single-spot red and green tubes | Aart A. Van Gorkum, Arne L. Duwaer, Johannes H. M. Spruit, Alexander R. H. Van Schoonhoven | 1989-02-21 |
| 4804884 | Display tube having improved brightness distribution | Johannes H. M. Spruit, John A. Clarke | 1989-02-14 |