Conrad Yu
20Patents
12h-index
9Co-inventors
74Inventor score
Filing activity: Sep 19, 1980 → Mar 23, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5882496A | Porous silicon structures with high surface area/specific pore size | Emerging Cross-Sectional Technologies | 102 | Expired |
| US5575929A | Method for making circular tubular channels with two silicon wafers | Physics | 78 | Expired |
| US5583281A | Microminiature gas chromatograph | Physics | 65 | Expired |
| US6004450A | Process for forming a porous silicon member in a crystalline silicon member | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6649078B2 | Thin film capillary process and apparatus | Performing Operations; Transporting | 39 | Expired |
| US6306200A | Hand-held multiple system gas chromatograph | Physics | 30 | Expired |
| US4316786A | Apparatus for electroplating particles of small dimension | Emerging Cross-Sectional Technologies | 26 | Expired |
| US7343779B1 | High performance, hand-held gas chromatograph, method and system | Physics | 20 | Active |
| US6068780A | Micro-miniature gas chromatograph column disposed in silicon wafers | Physics | 16 | Expired |
| US6134944A | System and method for preconcentrating, identifying, and quantifying chemical and biological substances | Physics | 14 | Expired |
| US6457347B1 | Glow discharge detector | Physics | 13 | Expired |
| US7122261B2 | Metal hydride fuel storage and method thereof | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6670024B1 | Glass-silicon column | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6502983B2 | Micro-machined thermo-conductivity detector | Physics | 4 | Expired |
| US6574381B2 | Integrated optical switch/amplifier with modulation capabilities | Electricity | 2 | Expired |
| US6736000B2 | Stable glow discharge detector | Physics | 2 | Expired |
| US6514875B1 | Chemical method for producing smooth surfaces on silicon wafers | Electricity | 1 | Expired |
| US7527659B2 | Metal hydride fuel storage and method thereof | Emerging Cross-Sectional Technologies | 1 | Active |
| US7771887B2 | Metal hydride fuel storage and method thereof | Emerging Cross-Sectional Technologies | 1 | Active |
| US6933496B2 | Ion mobility sensor | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.