ENERGY FOCUS, INC.
33Patents
30Active
33Granted
54Portfolio score
Filing activity: Apr 16, 2004 → Apr 7, 2021 · 8 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD587833S1 | Docklight | General | 26 | Expired |
| US7549783B2 | Efficient luminaire with directional side-light extraction | Mechanical Engineering; Lighting; Heating | 25 | Active |
| US7330632B1 | Fiberoptic luminaire with scattering and specular side-light extractor patterns | Mechanical Engineering; Lighting; Heating | 16 | Active |
| US7374313B2 | Luminaire with improved lateral illuminance control | Physics | 12 | Active |
| USD783199S1 | LED endcap | General | 7 | Active |
| US7588342B2 | Lighted refrigerated display case with remote light source | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| USD809703S1 | LED endcap | General | 6 | Active |
| USD822889S1 | LED endcap | General | 6 | Active |
| US7855339B2 | Electrical junction box cover system for use near water | Emerging Cross-Sectional Technologies | 5 | Active |
| USD783198S1 | LED endcap | General | 5 | Active |
| US8283874B2 | LED lighting system having a reduced-power usage mode | Electricity | 5 | Active |
| US7334945B2 | Plug-and-socket hub arrangement for mounting light pipe to receive light | Physics | 4 | Expired |
| US9557044B2 | LED lamp with dual mode operation | Emerging Cross-Sectional Technologies | 4 | Active |
| US8956006B2 | Elongated LED lamp for replacing a fluorescent lamp | Electricity | 3 | Active |
| US8480276B2 | Elongated lighting system | Physics | 3 | Active |
| US8348488B2 | Elongated solid luminaire with light-emitting portion with first and second extraction regions spatially divided along the longitudinal axis thereof | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8870428B2 | Elongated LED lighting arrangement | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8657476B2 | Elongated LED lighting arrangement | Physics | 2 | Active |
| US11118741B2 | LED lamp utilizing optical filtering to counteract effects of color anomalous vision | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11057981B2 | System and method for providing high power factor wired lamp control | Electricity | 1 | Active |
| US10236716B2 | Lamp with battery backup capability | Emerging Cross-Sectional Technologies | 0 | Active |
| US11425805B2 | Control circuit for tubular light emitting diode | Emerging Cross-Sectional Technologies | 0 | Active |
| US9204504B2 | LED lamp system | Emerging Cross-Sectional Technologies | 0 | Active |
| US10892615B2 | Circuit for mitigating electric shock | Electricity | 0 | Active |
| US10222006B2 | Tubular lamp and lamp socket with power pin connector and signal pin connector | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.