Karl W. Beeson
71Patents
32h-index
36Co-inventors
88Inventor score
Filing activity: Sep 22, 1982 → Aug 10, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5396350A | Backlighting apparatus employing an array of microprisms | Mechanical Engineering; Lighting; Heating | 414 | Expired |
| US5481385A | Direct view display device with array of tapered waveguide on viewer side | Physics | 233 | Expired |
| US5598281A | Backlight assembly for improved illumination employing tapered optical elements | Physics | 224 | Expired |
| US5462700A | Process for making an array of tapered photopolymerized waveguides | Physics | 174 | Expired |
| US7040774B2 | Illumination systems utilizing multiple wavelength light recycling | Physics | 154 | Expired |
| US5748828A | Color separating backlight | Physics | 149 | Expired |
| US5555329A | Light directing optical structure | Physics | 129 | Expired |
| US5521725A | Illumination system employing an array of microprisms | Emerging Cross-Sectional Technologies | 108 | Expired |
| US5428468A | Illumination system employing an array of microprisms | Mechanical Engineering; Lighting; Heating | 108 | Expired |
| US6424786B1 | Illumination assembly | Physics | 106 | Expired |
| US6960872B2 | Illumination systems utilizing light emitting diodes and light recycling to enhance output radiance | Electricity | 104 | Expired |
| US6869206B2 | Illumination systems utilizing highly reflective light emitting diodes and light recycling to enhance brightness | Emerging Cross-Sectional Technologies | 101 | Expired |
| US7025464B2 | Projection display systems utilizing light emitting diodes and light recycling | Physics | 94 | Expired |
| US6186649A | Linear illumination sources and systems | Physics | 92 | Expired |
| US7048385B2 | Projection display systems utilizing color scrolling and light emitting diodes | Electricity | 88 | Expired |
| US4568565A | Light induced chemical vapor deposition of conductive titanium silicide films | Electricity | 82 | Expired |
| US5359687A | Polymer microstructures which facilitate fiber optic to waveguide coupling | Physics | 81 | Expired |
| US6129439A | Illumination system employing an array of multi-faceted microprisms | Physics | 78 | Expired |
| US7293908B2 | Side emitting illumination systems incorporating light emitting diodes | Emerging Cross-Sectional Technologies | 71 | Expired |
| US5555109A | Illumination system employing an array of microprisms | Mechanical Engineering; Lighting; Heating | 68 | Expired |
| US5657408A | Optical device comprising a plurality of units having at least two geometrically-differentiated tapered optical waveguides therein | Emerging Cross-Sectional Technologies | 65 | Expired |
| US5739931A | Illumination system employing an array of microprisms | Mechanical Engineering; Lighting; Heating | 64 | Expired |
| US5696865A | Optical waveguide having two or more refractive indices and method of manufacturing same | Emerging Cross-Sectional Technologies | 61 | Expired |
| US5541039A | Method for forming optically active waveguides | Physics | 60 | Expired |
| US6144536A | Illumination system with light recycling to enhance brightness | Physics | 58 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.