Micro led display panel
US-2024371838-A1 · Nov 7, 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 | H01L33/52 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 1,752 |
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 | 172 |
| 2016 | 163 |
| 2017 | 171 |
| 2018 | 179 |
| 2019 | 232 |
| 2020 | 207 |
| 2021 | 174 |
| 2022 | 152 |
| 2023 | 135 |
| 2024 | 124 |
| 2025 | 43 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Display device and manufacturing method of display device
US-2024162394-A1 · May 16, 2024 · US
Method for producing optoelectronic semiconductor components, leadframe assemblage and optoelectronic semiconductor component
US-9219210-B2 · Dec 22, 2015 · US
Organic optoelectronic device and method for the encapsulation thereof
US-9209366-B2 · Dec 8, 2015 · US
Light-emitting device and method for manufacturing the same
US-2015349207-A1 · Dec 3, 2015 · US
Light emitting device
US-9203006-B2 · Dec 1, 2015 · US
High voltage array light emitting diode (LED) devices and fixtures
US-9194567-B2 · Nov 24, 2015 · US
White light emitting device and display apparatus
US-9190583-B2 · Nov 17, 2015 · US
Package method and package
US-2015318453-A1 · Nov 5, 2015 · US
Light emitting device, backlight unit and display apparatus
US-2015301259-A1 · Oct 22, 2015 · US
Light emitting device and method for producing same
US-2015303357-A1 · Oct 22, 2015 · US
Semiconductor device
US-2015295153-A1 · Oct 15, 2015 · US
Apparatus and package structure of optical chip
US-2015287705-A1 · Oct 8, 2015 · US
Light emitting element and light emitting device using the same
US-2015280071-A1 · Oct 1, 2015 · US
Light emitting device
US-2015280082-A1 · Oct 1, 2015 · US
Optoelectronic package and method for making same
US-9142693-B2 · Sep 22, 2015 · US
Light-emitting device package and method of manufacturing the same
US-9130133-B2 · Sep 8, 2015 · US
Optoelectronic Semiconductor Component and Method for Producing Said Component
US-2015249070-A1 · Sep 3, 2015 · US
Display devices and methods of manufacturing display devices
US-2015243705-A1 · Aug 27, 2015 · US
Semiconductor light-emitting device
US-2015236231-A1 · Aug 20, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01L33/52?
- CPC H01L33/52 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H01L33/52 (Electricity)?
- Our database includes 1,752 publications tagged with this CPC code.
- Is patent activity under CPC H01L33/52 growing?
- Publication counts under this code: 124 in 2024 vs 43 in 2025 (latest complete years).