Leendert Vriens
31Patents
12h-index
36Co-inventors
81Inventor score
Filing activity: Jun 12, 1978 → Mar 19, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5813753A | UV/blue led-phosphor device with efficient conversion of UV/blues light to visible light | Emerging Cross-Sectional Technologies | 675 | Expired |
| US5813752A | UV/blue LED-phosphor device with short wave pass, long wave pass band pass and peroit filters | Emerging Cross-Sectional Technologies | 209 | Expired |
| US4822144A | Electro-optic color display including luminescent layer and interference filter | Physics | 73 | Expired |
| US4882617A | Projection device and associated electro-optic monochrome display device with phosphor layer and interference filters | Electricity | 66 | Expired |
| US4634926A | Display tube provided with an interference filter | Electricity | 36 | Expired |
| US4683398A | Projection television display tube and device having interference filter | Electricity | 29 | Expired |
| US4762393A | Rear projection screen and rear projection system provided with such a screen | Physics | 29 | Expired |
| US5168351A | Short focal length video color projector employing dichroic mirror block | Electricity | 25 | Expired |
| US4804884A | Display tube having improved brightness distribution | Electricity | 24 | Expired |
| US4899080A | Projection television display tube with cooling means and display device having such a display tube | Electricity | 23 | Expired |
| US4647812A | Display tube having a display window with an interference filter | Electricity | 20 | Expired |
| US5068568A | Cathode ray tube having multilayer interference filter | Electricity | 12 | Expired |
| US4990824A | Color cathode ray tube having interference filter with different pass bands | Electricity | 12 | Expired |
| US4807014A | Three tube color projection television system having multispot blue tube and single-spot red and green tubes | Electricity | 10 | Expired |
| US4989092A | Picture display device using scan direction transposition | Electricity | 7 | Expired |
| US5099169A | Shadow mask color display tube | Electricity | 7 | Expired |
| US5619094A | Color cathode ray tube and display device with reduced moire | Electricity | 6 | Expired |
| US4606017A | Optical recording disc | Physics | 5 | Expired |
| US5319280A | Color picture tube with reduced raster distortion and flat appearing display window | Electricity | 5 | Expired |
| US5209690A | 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 | Electricity | 5 | Expired |
| US5179312A | Television projection system having frame with integral cooling | Electricity | 4 | Expired |
| US5841247A | Cathode ray tube, display system incorporating same and computer including control means for display system | Electricity | 4 | Expired |
| US6239772A | Video moire reduction | Electricity | 4 | Expired |
| US4988203A | Device for inspecting an interference filter for a projection television display tube | Physics | 3 | Expired |
| US5825435A | Color cathrode ray tube and display device | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.