Systems and methods for control of output from light output apparatus
US-2017285594-A1 · Oct 5, 2017 · US
Electroluminescent light sources
Electroluminescent light sources · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H05B33/00 |
| Official title | Electroluminescent light sources |
| Display label | Electroluminescent light sources |
| Total patents | 115 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 30 |
| 2016 | 20 |
| 2017 | 17 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 9 |
| 2021 | 9 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 6 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
LED lighting device compatible with night vision devices
US-9752756-B2 · Sep 5, 2017 · US
Benzimidazo[1,2-a]Benzimidazole Derivatives for Electronic Applications
US-2017244051-A1 · Aug 24, 2017 · US
Organic light emitting display device and method for manufacturing the same
US-9741961-B2 · Aug 22, 2017 · US
Element substrate and light-emitting device
US-9698207-B2 · Jul 4, 2017 · US
Display device
US-2017186780-A1 · Jun 29, 2017 · US
Light emitting device
US-2017162642-A1 · Jun 8, 2017 · US
Display device having sealing material
US-9627459-B2 · Apr 18, 2017 · US
Driver device and driving method for driving a load, in particular a light unit
US-9603216-B2 · Mar 21, 2017 · US
Display device and driving method of the same
US-9577008-B2 · Feb 21, 2017 · US
Display device
US-9508756-B2 · Nov 29, 2016 · US
Display device, in particular for cooktops
US-9483983-B2 · Nov 1, 2016 · US
Element substrate and light-emitting device
US-2016284778-A1 · Sep 29, 2016 · US
LED driver, LED driving method and controller for LED driver
US-9449546-B2 · Sep 20, 2016 · US
Organic electroluminescent module and method of manufacturing the same
US-9425439-B2 · Aug 23, 2016 · US
Glass composition for high-reliability ceramic phosphor plate and ceramic phosphor
US-9403713-B2 · Aug 2, 2016 · US
Light Emitting Device and Method of Manufacturing the Same
US-2016218160-A1 · Jul 28, 2016 · US
Self-Light-Emitting Device and Method of Manufacturing the Same
US-2016204173-A1 · Jul 14, 2016 · US
Organic light-emitting element and light-emitting device with the organic light-emitting element
US-9385339-B2 · Jul 5, 2016 · US
Automated color tuning of an LED based illumination device
US-9328880-B2 · May 3, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H05B33/00?
- CPC H05B33/00 is the Cooperative Patent Classification code for “Electroluminescent light sources.”
- How many patents are filed under CPC H05B33/00 (Electroluminescent light sources)?
- Our database includes 115 publications tagged with this CPC code.
- Is patent activity under CPC H05B33/00 growing?
- Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).