Joseph Ip
10Patents
10h-index
8Co-inventors
61Inventor score
Filing activity: Aug 31, 1982 → Jan 14, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5798859A | Method and device for wavelength locking | Electricity | 130 | Expired |
| US5608825A | Multi-wavelength filtering device using optical fiber Bragg grating | Electricity | 82 | Expired |
| US5283845A | Multi-port tunable fiber-optic filter | Physics | 57 | Expired |
| US5612824A | Narrow band filter and method of making same | Physics | 43 | Expired |
| US5557468A | Chromatic dispersion compensation device | Physics | 36 | Expired |
| US5909295A | Hybrid bi-directional wavelength division multiplexing device | Physics | 22 | Expired |
| US5748363A | Wavelength dependent crossover system for bi-directional transmission | Electricity | 22 | Expired |
| US6040932A | Method and circuit for demultiplexing an optical signal | Physics | 17 | Expired |
| US6141130A | Spectral equalizer for multiplexed channels | Electricity | 14 | Expired |
| USD277845S | Combined battery charger, power supply and battery tester | General | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.