Optoelectronic semiconductor chip
US-2024204138-A1 · Jun 20, 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 | H01L33/387 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 1,019 |
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 | 79 |
| 2016 | 94 |
| 2017 | 94 |
| 2018 | 95 |
| 2019 | 127 |
| 2020 | 121 |
| 2021 | 102 |
| 2022 | 92 |
| 2023 | 101 |
| 2024 | 85 |
| 2025 | 29 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Semiconductor light-emitting device and method of manufacturing the same
US-2015364652-A1 · Dec 17, 2015 · US
Pixel structure
US-9214476-B1 · Dec 15, 2015 · US
Light-emitting element
US-2015357524-A1 · Dec 10, 2015 · US
Light emitting device and light emitting device package
US-9209370-B2 · Dec 8, 2015 · US
Light emitting diode and light emitting device including the same
US-2015349232-A1 · Dec 3, 2015 · US
Light-emitting diode and method of fabricating the same
US-9202984-B2 · Dec 1, 2015 · US
Semiconductor light emitting device
US-2015340348-A1 · Nov 26, 2015 · US
Pixel structure
US-2015340384-A1 · Nov 26, 2015 · US
Light emitting device
US-9190562-B2 · Nov 17, 2015 · US
Three-dimensional high surface area electrodes
US-9177933-B2 · Nov 3, 2015 · US
Light emitting device, light emitting device package, and lighting system
US-9172015-B2 · Oct 27, 2015 · US
Light emitting device package
US-9172004-B2 · Oct 27, 2015 · US
Semiconductor light-emitting device and method for manufacturing same
US-2015295136-A1 · Oct 15, 2015 · US
Wafer level phosphor coating method and devices fabricated utilizing method
US-9159888-B2 · Oct 13, 2015 · US
Semiconductor light emitting device and method for manufacturing same
US-9153746-B2 · Oct 6, 2015 · US
Vertically printing LEDs in series
US-9142535-B2 · Sep 22, 2015 · US
Semiconductor light emitting device and method for manufacturing same
US-9136437-B2 · Sep 15, 2015 · US
Light-emitting diode, light-emitting diode lamp, and illumination device
US-2015255680-A1 · Sep 10, 2015 · US
Display device and method for manufacturing display device
US-2015249069-A1 · Sep 3, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01L33/387?
- CPC H01L33/387 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H01L33/387 (Electricity)?
- Our database includes 1,019 publications tagged with this CPC code.
- Is patent activity under CPC H01L33/387 growing?
- Publication counts under this code: 85 in 2024 vs 29 in 2025 (latest complete years).