Chang-Hum Lee
11Patents
9h-index
3Co-inventors
61Inventor score
Filing activity: Oct 30, 1995 → Apr 29, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6157169A | Monitoring technique for accurately determining residual capacity of a battery | Physics | 1,066 | Expired |
| US5854617A | Circuit and a method for controlling a backlight of a liquid crystal display in a portable computer | Emerging Cross-Sectional Technologies | 141 | Expired |
| US5818172A | Lamp control circuit having a brightness condition controller having 2.sup. n .sup.rd and 4.sup.th current paths | Emerging Cross-Sectional Technologies | 103 | Expired |
| US5994875A | Battery charging apparatus and method with charging mode convertible function | Electricity | 70 | Expired |
| US5986437A | Power supply system for portable electronic devices | Emerging Cross-Sectional Technologies | 67 | Expired |
| US5900717A | Rechargeable battery charging circuit | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6075345A | Battery powered electronic system with an improved power management | Electricity | 43 | Expired |
| US6483274B2 | Device and method for displaying charge capacity information of smart battery | Electricity | 26 | Expired |
| US5861730A | Battery charging apparatus | Electricity | 21 | Expired |
| US8970181B2 | Apparatus and method to charge a battery | Emerging Cross-Sectional Technologies | 1 | Active |
| US6963329B2 | Portable computer system and controlling method thereof | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.