Flat lighting device and display device using light-emitting diode
US-12033565-B2 · Jul 9, 2024 · 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 | H01L33/0004 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 47 |
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 | 7 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 9 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flat lighting device and display device using light-emitting diode
US-2023401993-A1 · Dec 14, 2023 · US
Flexible optoelectronic device and process for manufacturing same
US-2023299233-A1 · Sep 21, 2023 · US
Light emitting device, method of fabricating same and method of controlling light emission
US-11688826-B2 · Jun 27, 2023 · US
ELECTRICAL CONTACT-FREE uLED LIGHT EMITTING DEVICE BASED ON WAVELENGHT DOWN-CONVERSION
US-2023197882-A1 · Jun 22, 2023 · US
Semiconductor light emitting device
US-2023187595-A1 · Jun 15, 2023 · US
Semiconductor light emitting device
US-2023187596-A1 · Jun 15, 2023 · US
Adhesive transparent electrode and method of fabricating the same
US-11653510-B2 · May 16, 2023 · US
Tuning of emission properties of quantum emission devices using strain-tuned piezoelectric template layers
US-11575065-B2 · Feb 7, 2023 · US
Display panel, light-emitting device, and driving method thereof
US-11569407-B2 · Jan 31, 2023 · US
Tuning of emission properties of quantum emission devices using strain-tuned piezoelectric template layers
US-2022246787-A1 · Aug 4, 2022 · US
Display panel, light-emitting device, and driving method thereof
US-2022115555-A1 · Apr 14, 2022 · US
Phosphor and semiconductor light emitting device using the same
US-11274249-B2 · Mar 15, 2022 · US
Rare earth nitride structures and devices and method for removing a passivating capping
US-11217743-B2 · Jan 4, 2022 · US
Light emitting device, method of manufacturing light emitting device, and projector
US-11063171-B2 · Jul 13, 2021 · US
Red phosphor and light emitting device using the same
US-10982142-B1 · Apr 20, 2021 · US
Phosphor and semiconductor light emitting device using the same
US-2021108139-A1 · Apr 15, 2021 · US
Red phosphor and light emitting device using the same
US-2021102118-A1 · Apr 8, 2021 · US
Light emitting device, method of manufacturing light emitting device, and projector
US-2020313032-A1 · Oct 1, 2020 · US
Light emitting device, method of fabricating same and method of controlling light emission
US-2020203560-A1 · Jun 25, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01L33/0004?
- CPC H01L33/0004 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H01L33/0004 (Electricity)?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC H01L33/0004 growing?
- Publication counts under this code: 9 in 2023 vs 1 in 2024 (latest complete years).