Robert Chen
25Patents
9h-index
28Co-inventors
75Inventor score
Filing activity: Oct 18, 1989 → Feb 20, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5153842A | Integrated circuit package label and/or manifest system | Physics | 219 | Expired |
| US4980542A | Postal charge accounting system | Physics | 88 | Expired |
| US5881129A | Self-monitoring line interface circuit | Electricity | 75 | Expired |
| US5854839A | Dual voltage, self-monitoring line circuit | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4978839A | Postage meter value card system | Physics | 21 | Expired |
| US5848149A | Subscriber line interface and power circuit | Electricity | 17 | Expired |
| US6301358A | Dual-slope current battery-feed circuit | Emerging Cross-Sectional Technologies | 12 | Expired |
| US10801950B2 | Reference switch architectures for noncontact sensing of substances | Physics | 9 | Active |
| US7561848B2 | Apparatus for manufacturing management using a wireless device | Physics | 9 | Active |
| US6657496B2 | Amplifier circuit with regenerative biasing | Electricity | 8 | Expired |
| US6838977B2 | Apparatus for manufacturing management using a wireless device | Physics | 6 | Expired |
| US11585749B2 | Reference switch architectures for noncontact sensing of substances | Physics | 3 | Active |
| US7135915B2 | Tuning filters having transconductor cells | Electricity | 2 | Expired |
| US8816761B2 | Tunable biquad filter circuit including phase shift detection and methods for using such | Electricity | 2 | Active |
| US6842518B2 | Frequency-dependent impedance synthesis for DSL interface circuits | Electricity | 2 | Expired |
| US11041758B2 | Multiplexing and encoding for reference switching | Physics | 1 | Active |
| US9939322B2 | Polarization selective, frequency selective, and wide dynamic range detectors, imaging arrays, readout integrated circuits, and sensor systems | Physics | 1 | Active |
| US10323987B2 | Polarization selective, frequency selective, and wide dynamic range detectors, imaging arrays, readout integrated circuits, and sensor systems | Physics | 1 | Active |
| US8560589B2 | Systems and methods for filter initialization and tuning | Electricity | 0 | Active |
| US11740126B2 | Multiplexing and encoding for reference switching | Physics | 0 | Active |
| US10690591B2 | Measurement time distribution in referencing schemes | Physics | 0 | Active |
| US9276560B2 | Systems and methods for filter initialization and tuning | Electricity | 0 | Active |
| US12085500B2 | Reference switch architectures for noncontact sensing of substances | Physics | 0 | Active |
| US10670466B2 | Polarization selective, frequency selective, and wide dynamic range detectors, imaging arrays, readout integrated circuits, and sensor systems | Physics | 0 | Active |
| US6940969B2 | Capacitor cancellation method and apparatus | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.