Li Chen
15Patents
5h-index
25Co-inventors
66Inventor score
Filing activity: Jun 27, 2000 → Feb 8, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6671428B1 | Wavelength selective optical cross switch and optical add/drop multiplexer using volume phase grating and array of micro electro mechanical mirrors | Physics | 22 | Expired |
| US6563977B1 | Compact wavelength multiplexer-demultiplexer providing low polarization sensitivity | Physics | 20 | Expired |
| US6900932B2 | Optical gain flattening filter using VPG-based optical elements | Electricity | 11 | Expired |
| US6704509B1 | Compact optical performance monitor | Electricity | 11 | Expired |
| US6706154B1 | Method for fabricating integrated optical components using ultraviolet laser techniques | Physics | 6 | Expired |
| US6747791B1 | Optical amplifier with a spectral gain monitor using a volume phase grating | Electricity | 4 | Expired |
| US10630309B1 | Signal receiver for radio signal strength indication estimation with sub-sampling analog-to-digital converter for radio frequency signal with constant envelope modulation | Electricity | 3 | Active |
| US8948230B1 | Multi-rate coexistence scheme in DSSS O-QPSK network | Electricity | 3 | Active |
| US6888980B2 | Methods and techniques for achieving flattened and broadened pass band spectrum for free-space grating-based dense wavelength division multiplexers/demultiplexers | Physics | 2 | Expired |
| US7966627B2 | Emergency ejecting apparatus for optical disc drive | Physics | 2 | Active |
| US9109218B2 | Human arginase and pegylated human arginase and the use thereof | Chemistry; Metallurgy | 2 | Active |
| USD769528S1 | Non-slip hair band | General | 2 | Active |
| US7908612B2 | Emergency ejecting apparatus for optical disc drive | Physics | 1 | Active |
| US11569854B1 | RF receiver and method for simultaneously compensating carrier frequency offset and optimizing bandwidth by using preamble of a received RF signal | Electricity | 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.