Deep ultraviolet light emitting element and method of manufacturing the same
US-2019393381-A1 · Dec 26, 2019 · 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 | H01L33/305 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 188 |
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 | 11 |
| 2016 | 10 |
| 2017 | 13 |
| 2018 | 16 |
| 2019 | 22 |
| 2020 | 27 |
| 2021 | 25 |
| 2022 | 19 |
| 2023 | 22 |
| 2024 | 20 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Radiation-emitting semiconductor body and semiconductor chip
US-2019386175-A1 · Dec 19, 2019 · US
Led structures for reduced non-radiative sidewall recombination
US-2019371964-A1 · Dec 5, 2019 · US
Light emitting diode with displaced P-type doping
US-10490691-B2 · Nov 26, 2019 · US
Infrared light emitting device
US-2019198713-A1 · Jun 27, 2019 · US
Monolithic segmented led array architecture with islanded epitaxial growth
US-2019198564-A1 · Jun 27, 2019 · US
Light emitting device
US-2019189844-A1 · Jun 20, 2019 · US
Washable mold for conformable layer formation on semiconductor devices
US-10326040-B1 · Jun 18, 2019 · US
Infrared LED
US-10211370-B2 · Feb 19, 2019 · US
Optoelectronic semiconductor chip and method for producing optoelectronic semiconductor chips
US-10181547-B2 · Jan 15, 2019 · US
Semiconductor light-emitting device
US-2018374992-A1 · Dec 27, 2018 · US
Semiconductor light-emitting device
US-10153397-B2 · Dec 11, 2018 · US
Light-emitting diode
US-10103289-B2 · Oct 16, 2018 · US
Light emitting device, light emitting device package, and light unit
US-10090439-B2 · Oct 2, 2018 · US
Optoelectronic semiconductor chip and method for producing same
US-2018261717-A1 · Sep 13, 2018 · US
Semiconductor light-emitting device
US-10038117-B2 · Jul 31, 2018 · US
Light emitting diode with displaced p-type doping
US-2018212097-A1 · Jul 26, 2018 · US
Infrared led
US-2018198021-A1 · Jul 12, 2018 · US
Semiconductor light-emitting device
US-2018190863-A1 · Jul 5, 2018 · US
Light-emitting diode chip
US-2018166609-A1 · Jun 14, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01L33/305?
- CPC H01L33/305 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H01L33/305 (Electricity)?
- Our database includes 188 publications tagged with this CPC code.
- Is patent activity under CPC H01L33/305 growing?
- Publication counts under this code: 20 in 2024 vs 3 in 2025 (latest complete years).