Ketra, Inc.
44Patents
44Active
44Granted
58Portfolio score
Filing activity: Sep 1, 2009 → Oct 18, 2016 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8521035B2 | Systems and methods for visible light communication | Electricity | 95 | Active |
| US8471496B2 | LED calibration systems and related methods | Electricity | 79 | Active |
| US9386668B2 | Lighting control system | Emerging Cross-Sectional Technologies | 75 | Active |
| US8749172B2 | Luminance control for illumination devices | Electricity | 70 | Active |
| US9392663B2 | Illumination device and method for controlling an illumination device over changes in drive current and temperature | Emerging Cross-Sectional Technologies | 61 | Active |
| US9392660B2 | LED illumination device and calibration method for accurately characterizing the emission LEDs and photodetector(s) included within the LED illumination device | Electricity | 57 | Active |
| US9332598B1 | Interference-resistant compensation for illumination devices having multiple emitter modules | Electricity | 54 | Active |
| US9578724B1 | Illumination device and method for avoiding flicker | Electricity | 50 | Active |
| US9655188B1 | Illumination device and method for independently controlling power delivered to a load from dimmers having dissimilar phase-cut dimming angles | Electricity | 49 | Active |
| US9655215B1 | System and method for ensuring minimal control delay to grouped illumination devices configured within a wireless network | Electricity | 46 | Active |
| US9736895B1 | Color mixing optics for LED illumination device | Mechanical Engineering; Lighting; Heating | 46 | Active |
| US9167666B1 | Light control unit with detachable electrically communicative faceplate | Electricity | 45 | Active |
| US9769899B2 | Illumination device and age compensation method | Emerging Cross-Sectional Technologies | 44 | Active |
| US9485813B1 | Illumination device and method for avoiding an over-power or over-current condition in a power converter | Electricity | 44 | Active |
| US9795000B1 | Illumination device, system and method for manually adjusting automated changes in exterior daylight among select groups of illumination devices placed in various rooms of a structure | Emerging Cross-Sectional Technologies | 41 | Active |
| US9295112B2 | Illumination devices and related systems and methods | Electricity | 39 | Active |
| US9655214B1 | Device, system and method for controlling visual content loaded into a grouped set of illumination devices configured within a wireless network | Electricity | 39 | Active |
| US9651632B1 | Illumination device and temperature calibration method | Electricity | 39 | Active |
| US9237620B1 | Illumination device and temperature compensation method | Electricity | 34 | Active |
| US9360174B2 | Linear LED illumination device with improved color mixing | Electricity | 28 | Active |
| US9557214B2 | Illumination device and method for calibrating an illumination device over changes in temperature, drive current, and time | Electricity | 27 | Active |
| US9237623B1 | Illumination device and method for determining a maximum lumens that can be safely produced by the illumination device to achieve a target chromaticity | Electricity | 27 | Active |
| US9345097B1 | Interference-resistant compensation for illumination devices using multiple series of measurement intervals | Electricity | 23 | Active |
| US9247605B1 | Interference-resistant compensation for illumination devices | Electricity | 23 | Active |
| US9930742B1 | Keypad with color temperature control as a function of brightness among scenes and the momentary or persistent override and reprogram of a natural show and method thereof | Emerging Cross-Sectional Technologies | 22 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.