Power supply device and lighting equipment provided with power supply device
US-9226357-B2 · Dec 29, 2015 · US
Electricity
Electricity · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H05B33/0803 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 626 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 122 |
| 2016 | 95 |
| 2017 | 96 |
| 2018 | 121 |
| 2019 | 154 |
| 2020 | 38 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vehicle lamp
US-9221389-B2 · Dec 29, 2015 · US
Modular illumination device
US-9217558-B2 · Dec 22, 2015 · US
Backlight driving circuit and liquid crystal display device
US-9214113-B2 · Dec 15, 2015 · US
Light devices
US-9210754-B2 · Dec 8, 2015 · US
Light emitting diode driving apparatus
US-9204506-B2 · Dec 1, 2015 · US
Lighting device
US-9200795-B2 · Dec 1, 2015 · US
Dimmable LED reading light unit, arrangement of power supply and dimmable LED reading light unit, method of operating a dimmable LED reading light unit in a power supply system, and method of replacing a dimmable light unit by a dimmable LED reading light unit
US-9192012-B2 · Nov 17, 2015 · US
Solid state lightening driver with mixed control of power switch
US-9173273-B2 · Oct 27, 2015 · US
Variable lighting apparatus
US-9167636-B2 · Oct 20, 2015 · US
Low profile luminaire with light guide and associated systems and methods
US-9157581-B2 · Oct 13, 2015 · US
Vehicle Interior Lighting Device
US-2015274070-A1 · Oct 1, 2015 · US
Lighting device including light-emitting element and method for manufacturing the same
US-9146026-B2 · Sep 29, 2015 · US
Led current generation
US-2015271880-A1 · Sep 24, 2015 · US
Light emitting diode light bulb and incandescent lamp conversion apparatus
US-9140413-B2 · Sep 22, 2015 · US
Switchable luminance LED light bulb
US-9144129-B2 · Sep 22, 2015 · US
Illumination light source and lighting apparatus
US-9137860-B2 · Sep 15, 2015 · US
Heat dissipating method for light emitting diode and lighting device using same
US-9131559-B2 · Sep 8, 2015 · US
Lighting apparatus and lighting apparatus assembly using the same
US-9121593-B2 · Sep 1, 2015 · US
Lighting system with thermal management system
US-9119246-B2 · Aug 25, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H05B33/0803?
- CPC H05B33/0803 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H05B33/0803 (Electricity)?
- Our database includes 626 publications tagged with this CPC code.
- Is patent activity under CPC H05B33/0803 growing?
- Publication counts under this code: 154 in 2019 vs 38 in 2020 (latest complete years).