Densen Cao
86Patents
29h-index
12Co-inventors
85Inventor score
Filing activity: Sep 24, 1999 → Dec 30, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7271420B2 | Monolitholic LED chip to emit multiple colors | Electricity | 270 | Expired |
| US6634770B2 | Light source using semiconductor devices mounted on a heat sink | Emerging Cross-Sectional Technologies | 240 | Expired |
| US6331111A | Curing light system useful for curing light activated composite materials | Emerging Cross-Sectional Technologies | 196 | Expired |
| US6465961B1 | Semiconductor light source using a heat sink with a plurality of panels | Electricity | 166 | Expired |
| US6746885B2 | Method for making a semiconductor light source | Electricity | 109 | Expired |
| US8653723B2 | LED light bulbs for space lighting | Mechanical Engineering; Lighting; Heating | 100 | Active |
| US6719559B2 | Curing light | Emerging Cross-Sectional Technologies | 63 | Expired |
| US6719446B2 | Semiconductor light source for providing visible light to illuminate a physical space | Emerging Cross-Sectional Technologies | 63 | Expired |
| US6783362B2 | Dental curing light using primary and secondary heat sink combination | Emerging Cross-Sectional Technologies | 53 | Expired |
| US7485116B2 | Laser systems, with a fiber storage and dispensing unit, useful in medicine and dentistry | Human Necessities | 53 | Expired |
| US6700158B1 | Trench corner protection for trench MOSFET | Electricity | 53 | Expired |
| US6755649B2 | Curing light | Emerging Cross-Sectional Technologies | 45 | Expired |
| US6719558B2 | Curing light | Emerging Cross-Sectional Technologies | 44 | Expired |
| US6755648B2 | Curing light | Human Necessities | 44 | Expired |
| US6824294B2 | Light for use in activating light-activated materials, the light having a plurality of chips mounted in a gross well of a heat sink, and a dome covering the chips | Human Necessities | 44 | Expired |
| US6634771B2 | Semiconductor light source using a primary and secondary heat sink combination | Emerging Cross-Sectional Technologies | 42 | Expired |
| US6926524B2 | Curing light | Emerging Cross-Sectional Technologies | 40 | Expired |
| US8834457B2 | Modular surgical laser systems | Emerging Cross-Sectional Technologies | 37 | Active |
| US7224001B2 | Semiconductor light source | Electricity | 36 | Expired |
| USD740117S1 | Packaging tray | General | 34 | Active |
| US6780010B2 | Curing light | Emerging Cross-Sectional Technologies | 34 | Expired |
| US9295537B2 | Three dimensional curing light | Mechanical Engineering; Lighting; Heating | 34 | Active |
| US6799967B2 | Light for use in activating light-activated materials, the light having a plurality of light emitting single chip arrays | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6974319B2 | Curing light | Human Necessities | 33 | Expired |
| US7252678B2 | Forensic light using semiconductor light source | Physics | 32 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.