Charles Chu
35Patents
7h-index
19Co-inventors
66Inventor score
Filing activity: Apr 2, 1997 → Sep 20, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6533255B1 | Liquid metal-heating apparatus for biological/chemical sample | Emerging Cross-Sectional Technologies | 18 | Expired |
| USD397635S | Siren speaker | General | 17 | Expired |
| US8217461B1 | ESD protection circuit | Electricity | 15 | Active |
| US6885016B2 | Switching power supply circuit using a silicon based LED for feedback | Electricity | 14 | Expired |
| US6241480A | Micro-magnetohydrodynamic pump and method for operation of the same | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6947629B2 | 3D image feedback optical beam alignment | Physics | 11 | Expired |
| US9368485B1 | Electrostatic discharge circuitry with separate power rails | Electricity | 10 | Active |
| USD425900S | Faceplate | General | 7 | Expired |
| USD397636S | Siren speaker | General | 7 | Expired |
| US9553038B2 | Semiconductor cooling apparatus | Electricity | 7 | Active |
| USD403260S | Alarm unit | General | 6 | Expired |
| US7911748B1 | Diffusion capacitor for actively triggered ESD clamp | Electricity | 6 | Active |
| US6996488B2 | Sensor signal conditioner | Physics | 6 | Expired |
| US8116048B1 | ESD protection for differential output pairs | Electricity | 4 | Active |
| USD406780S | Alarm | General | 4 | Expired |
| USD419475S | Alarm | General | 3 | Expired |
| US7456511B1 | Wind powered global positioning tracking device | Emerging Cross-Sectional Technologies | 3 | Active |
| US7208399B2 | Transistor with notched gate | Electricity | 3 | Expired |
| US8097925B2 | Integrated circuit guard rings | Electricity | 3 | Active |
| US10451715B2 | Using integrated silicon LED to calibrate phase offset in optical receiver in laser range finder | Physics | 3 | Active |
| US9472487B2 | Flexible electronic package integrated heat exchanger with cold plate and risers | Electricity | 2 | Active |
| US8619398B1 | ESD protection for differential output pairs | Electricity | 2 | Active |
| US8614130B2 | Integrated circuit guard rings | Electricity | 2 | Active |
| US6291299A | Method for making MOS transistors | Electricity | 2 | Expired |
| US8611138B1 | Circuits and methods for hardening volatile memory circuits through one time programming | Physics | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.