Joachim Opitz
25Patents
8h-index
46Co-inventors
75Inventor score
Filing activity: May 19, 1986 → Nov 23, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6870311B2 | Light-emitting devices utilizing nanoparticles | Electricity | 94 | Expired |
| US5744233A | Method of coating luminescent powders, luminescent powders and coated object | Emerging Cross-Sectional Technologies | 58 | Expired |
| US7083490B2 | Light-emitting devices utilizing nanoparticles | Electricity | 33 | Expired |
| US5362472A | Method of manufacturing aqueous ceramic suspensions and the use of said suspensions | Chemistry; Metallurgy | 19 | Expired |
| US4747863A | Method of manufacturing glass bodies | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6517741B1 | Color display screen with color pigment | Chemistry; Metallurgy | 10 | Expired |
| US5884560A | Printing form for a rotary relief-printing method | Performing Operations; Transporting | 9 | Expired |
| US6753649B1 | Plasma picture screen with UV light reflecting front plate coating | Electricity | 9 | Expired |
| US6573654B2 | Plasma picture sceen with a terbium(III)-activated phosphor | Electricity | 6 | Expired |
| US6013979A | Phosphor composition with a coating of colloidal SiO.sub.2 particles and an oxygen compound of magnesium, calcium, barium, zinc, or aluminum | Chemistry; Metallurgy | 6 | Expired |
| US6873091B2 | Organic electroluminescent display device comprising an optical filter | Emerging Cross-Sectional Technologies | 6 | Expired |
| US8128253B2 | Light emitting floor surface | Physics | 4 | Active |
| US8651723B2 | LED light source with a luminescent layer | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US6010779A | Phosphor composition comprising fine-grain and coarse-grain SiO.sub.2 particles | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8999039B2 | Oxygen separation membrane | Chemistry; Metallurgy | 3 | Active |
| US6700324B2 | Plasma picture screen with improved white color point | Electricity | 2 | Expired |
| US5936340A | Display screen comprising an adhesive layer | Electricity | 1 | Expired |
| US7262551B2 | Electroluminescent device with improved light output | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6841937B2 | Colored electric lamp with a colored pigment-containing coating | Chemistry; Metallurgy | 1 | Expired |
| US6756727B2 | Color picture screen with color filter | Electricity | 1 | Expired |
| US6520664B1 | Pigment coated lamp and luminaire emitting colored light | Electricity | 1 | Expired |
| US6750610B2 | Plasma display with enhanced contrast and protective layer | Electricity | 1 | Expired |
| US8998455B2 | Method of manufacturing a part of a color ring and a part of a color ring | Chemistry; Metallurgy | 0 | Active |
| US7495386B2 | Electroluminescent device with improved light output | Emerging Cross-Sectional Technologies | 0 | Active |
| US7969089B2 | LED with improved light emission profile | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.