Kenneth Li
68Patents
19h-index
26Co-inventors
84Inventor score
Filing activity: Sep 14, 1993 → Jul 11, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6157323A | Button-key/cylindrical-key alphabetizer | Electricity | 132 | Expired |
| US6129662A | Surgical tool with surgical field illuminator | Physics | 73 | Expired |
| US5430620A | Compact surgical illumination system capable of dynamically adjusting the resulting field of illumination | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6227682A | Coupling of light from a small light source for projection systems using parabolic reflectors | Physics | 47 | Expired |
| US6385371B1 | Optical system including coupling for transmitting light between a single fiber light guide and multiple single fiber light guides | Physics | 42 | Expired |
| US5709459A | Surgical luminaire | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6587269B2 | Polarization recovery system for projection displays | Electricity | 37 | Expired |
| US7976204B2 | Illumination system and method for recycling light to increase the brightness of the light source | Emerging Cross-Sectional Technologies | 36 | Active |
| US5751869A | Optical system for coupling light from a single fiber optic into a fiber bundle | Human Necessities | 33 | Expired |
| US8388190B2 | Illumination system and method for recycling light to increase the brightness of the light source | Emerging Cross-Sectional Technologies | 33 | Active |
| US6926435B2 | Led illumination engine using a reflector | Electricity | 30 | Expired |
| US6634759B1 | Coupling of light from a light source to a target using dual ellipsoidal reflectors | Physics | 26 | Expired |
| US5635926A | Pointing and/or directional control device for controlling the movement and positioning of an object | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5642456A | Light intensity attenuator for optical transmission systems | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6856727B2 | Coupling of light from a non-circular light source | Physics | 22 | Expired |
| US6829412B2 | Lensed tapered optical waveguide | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6065882A | Snap-in proximal connector for mounting an optic fiber element into a light source system | Physics | 19 | Expired |
| US6595673B1 | Coupling of high intensity light into low melting point fiber optics using polygonal homogenizers | Physics | 19 | Expired |
| US6626582B2 | Snap-on connector system for coupling light from an illuminator to a fiber optic | Physics | 19 | Expired |
| US6312144A | Optical system having retro-reflectors | Physics | 17 | Expired |
| US5707131A | Collections and condensing optical system using cascaded concave reflectors | Physics | 17 | Expired |
| US6616304B2 | Temperature control for arc lamps | Electricity | 16 | Expired |
| US6969177B2 | Polarization recovery system using redirection | Electricity | 15 | Expired |
| US6231199A | Collecting and condensing optical system using cascaded parabolic reflectors | Physics | 14 | Expired |
| US5754719A | Method for coupling light from single fiberoptic to a multi-fiber bundle with enhanced field uniformity and better coupling efficiency | Physics | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.