William Yu
17Patents
5h-index
6Co-inventors
59Inventor score
Filing activity: Dec 30, 1997 → Apr 4, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5921660A | Electric bulb for identification lamp | Emerging Cross-Sectional Technologies | 175 | Expired |
| US6343871B1 | Body height adjustable electric bulb for illuminated signs | Emerging Cross-Sectional Technologies | 48 | Expired |
| US7520072B2 | Exit signs with and without emergency lighting | Physics | 15 | Active |
| US6739737B2 | Lamp body for a fluorescent compact spot and flood light source | Electricity | 10 | Expired |
| US8574280B2 | Systems and methods for eliciting cutaneous sensations by electromagnetic radiation | Human Necessities | 5 | Active |
| US6407511B1 | Electronic ballast suitable for lighting control in fluorescent lamp | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7256539B2 | Eccentric planar fluorescent tube | Electricity | 3 | Expired |
| US6255785A | High power factor electronic ballast with low lamp current peak ratio | Electricity | 3 | Expired |
| US6727678B2 | Rechargeable battery protection circuit with alarm unit | Electricity | 3 | Expired |
| US9257021B2 | Systems and methods for optically induced cutaneous sensation | Physics | 2 | Active |
| US10295823B2 | Systems and methods for eliciting cutaneous sensations using electromagnetic radiation | Physics | 1 | Active |
| US6907537B2 | Frequency division type device for protecting a portable information processing system from data loss when the system experiences unusual voltages | Physics | 0 | Expired |
| US6753855B2 | Driver circuit for LCDM | Electricity | 0 | Expired |
| US9449477B2 | Applications of systems and methods for eliciting cutaneous sensations by electromagnetic radiation | Physics | 0 | Active |
| US9696804B2 | Systems and methods for eliciting cutaneous sensations by electromagnetic radiation | Human Necessities | 0 | Active |
| US10037661B2 | Applications of systems and methods for eliciting cutaneous sensations by electromagnetic radiation | Physics | 0 | Active |
| US7142784B2 | Microprocessor-based optical signal conditioner | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.