Harmonic Lightwaves
14Patents
0Active
14Granted
36Portfolio score
Filing activity: Aug 18, 1988 → Dec 5, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5940196A | Optical communications system with wavelength division multiplexing | Electricity | 134 | Expired |
| US5181214A | Temperature stable solid-state laser package | Electricity | 132 | Expired |
| US5278923A | Cascaded optical modulation system with high linearity | Physics | 119 | Expired |
| US5424680A | Predistorter for high frequency optical communications devices | Electricity | 101 | Expired |
| US5161044A | Optical transmitters linearized by means of parametric feedback | Physics | 99 | Expired |
| US5216729A | Active alignment system for laser to fiber coupling | Physics | 70 | Expired |
| US5282072A | Shunt-expansive predistortion linearizers for optical analog transmitters | Electricity | 59 | Expired |
| US5253309A | Optical distribution of analog and digital signals using optical modulators with complementary outputs | Electricity | 52 | Expired |
| USD416873S | Housing for outdoor electrical equipment | General | 36 | Expired |
| US5102222A | Light wave polarization determination using a hybrid system | Physics | 31 | Expired |
| US5828477A | Multi-tone phase modulation for light wave communication system | Electricity | 31 | Expired |
| US5177764A | Unidirectional, planar ring laser with birefringence | Electricity | 21 | Expired |
| US5656978A | Control circuit and method for direct current controlled attenuator | Electricity | 18 | Expired |
| US5148444A | Tunable single-frequency ring laser | Electricity | 12 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.