John M. Davenport
121Patents
27h-index
115Co-inventors
93Inventor score
Filing activity: Jul 28, 1975 → Apr 7, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6294800A | Phosphors for white light generation from UV emitting diodes | Emerging Cross-Sectional Technologies | 229 | Expired |
| US5526237A | Lighting system for increasing brightness to a light guide | Physics | 118 | Expired |
| US5896004A | Double ended quartz lamp with end bend control | Electricity | 82 | Expired |
| US4811172A | Lighting systems employing optical fibers | Physics | 77 | Expired |
| US4958263A | Centralized lighting system employing a high brightness light source | Electricity | 68 | Expired |
| US5101325A | Uniform illumination of large, thin surfaces particularly suited for automotive applications | Physics | 64 | Expired |
| US5278731A | Fiber optic lighting system using conventional headlamp structures | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US4868718A | Forward illumination lighting system for vehicles | Mechanical Engineering; Lighting; Heating | 54 | Expired |
| US5184883A | Automobile lighting system that includes an exterior indicating device | Mechanical Engineering; Lighting; Heating | 53 | Expired |
| US6304693A | Efficient arrangement for coupling light between light source and light guide | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5058985A | Coupling means between a light source and a bundle of optical fibers and method of making such coupling means | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4949227A | Upper and lower beam optical switch for line-of-light headlamps using opaque masks | Mechanical Engineering; Lighting; Heating | 47 | Expired |
| US5222793A | Remote vehicle lighting system | Mechanical Engineering; Lighting; Heating | 47 | Expired |
| US4935668A | Metal halide lamp having vacuum shroud for improved performance | Mechanical Engineering; Lighting; Heating | 45 | Expired |
| US5257168A | Projection headlamp lighting system using a light conductor having stepped termination | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US5675677A | Lamp-to-light guide coupling arrangement for an electrodeless high intensity discharge lamp | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5023758A | Single arc discharge headlamp with light switch for high/low beam operation | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US3996493A | Fluorescent lamp unit having ballast resistor | Emerging Cross-Sectional Technologies | 36 | Expired |
| US6219480A | Optical coupler for coupling light between one and a plurality of light ports | Physics | 36 | Expired |
| US5388034A | Vehicle headlamp comprising a discharge lamp including an inner envelope and a surrounding shroud | Electricity | 32 | Expired |
| US4930049A | Optical multiplexed electrical distribution system particularly suited for vehicles | Performing Operations; Transporting | 32 | Expired |
| US5259056A | Coupler apparatus for use with a high brightness light source | Physics | 30 | Expired |
| US5420769A | High temperature lamp assembly with improved thermal management properties | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US5587626A | Patterned optical interference coatings for only a portion of a high intensity lamp envelope | Electricity | 29 | Expired |
| US4281274A | Discharge lamp having vitreous shield | Electricity | 28 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.