Roland H. Haitz
25Patents
8h-index
10Co-inventors
72Inventor score
Filing activity: Mar 5, 1991 → May 14, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5087949A | Light-emitting diode with diagonal faces | Electricity | 150 | Expired |
| US5917202A | Highly reflective contacts for light emitting semiconductor devices | Electricity | 104 | Expired |
| US5707139A | Vertical cavity surface emitting laser arrays for illumination | Emerging Cross-Sectional Technologies | 91 | Expired |
| US5971545A | Light source for projection display | Electricity | 85 | Expired |
| US5758951A | Vertical cavity surface emitting laser arrays for illumination | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5134340A | Light-emitting diode printhead | Electricity | 13 | Expired |
| US9863605B2 | Light-emitting devices providing asymmetrical propagation of light | Electricity | 11 | Active |
| US5323084A | Light emitting diode printhead | Electricity | 9 | Expired |
| US9915410B2 | Light-emitting devices with reflective elements | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US10151446B2 | Light-emitting device with total internal reflection (TIR) extractor | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10088618B2 | Light-emitting device with remote scattering element and total internal reflection extractor element | Electricity | 1 | Active |
| US9752757B2 | Light-emitting device with light guide for two way illumination | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10907797B2 | Light-emitting devices with reflective elements | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11353167B2 | Light-emitting devices providing asymmetrical propagation of light | Electricity | 0 | Active |
| US10451250B2 | Light-emitting devices providing asymmetrical propagation of light | Electricity | 0 | Active |
| US10811576B2 | Color tuning of light-emitting devices | Electricity | 0 | Active |
| US10546983B2 | Lighting device having a 3D scattering element and optical extractor with convex output surface | Electricity | 0 | Active |
| US10408428B2 | Light-emitting devices providing asymmetrical propagation of light | Electricity | 0 | Active |
| US10473292B2 | Solid state illumination devices including spatially-extended light sources and reflectors | Physics | 0 | Active |
| US9822948B2 | Solid state illumination devices including spatially-extended light sources and reflectors | Physics | 0 | Active |
| US10274167B2 | Light-emitting devices with reflective elements | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9291763B2 | Light-emitting device with remote scattering element and total internal reflection extractor element | Electricity | 0 | Active |
| US10429034B2 | Light-emitting device with light guide for two way illumination | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10107459B2 | Light-emitting device with remote phosphor and recessed light emitting element | Electricity | 0 | Active |
| US11009193B2 | Light-emitting devices providing asymmetrical propagation of light | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.