PureSpectrum, Inc
5Patents
0Active
5Granted
24Portfolio score
Filing activity: Apr 2, 2004 → Nov 24, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7235932B2 | High efficiency ballast for gas discharge lamps | Electricity | 6 | Expired |
| US7514878B2 | High frequency electronic ballast with sine wave oscillator | Electricity | 6 | Expired |
| US7388334B2 | High frequency electronic ballast with sine wave oscillator | Electricity | 5 | Expired |
| US7252406B2 | Fluorescent lamp system using reflectors | Electricity | 4 | Expired |
| US7514879B2 | Method and system for driving a plasma-based light source | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.