Hybrid growth method for iii-nitride tunnel junction devices
US-2022181513-A1 · Jun 9, 2022 · 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 | H01L31/147 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 72 |
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 | 5 |
| 2016 | 2 |
| 2017 | 10 |
| 2018 | 11 |
| 2019 | 15 |
| 2020 | 10 |
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 2 |
| 2024 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Image capturing and display apparatus and wearable device
US-2021297565-A1 · Sep 23, 2021 · US
Method and system for a focused field avalanche photodiode
US-11101400-B2 · Aug 24, 2021 · US
High voltage photovoltaics integrated with light emitting diode containing zinc oxide containing layer
US-11094843-B2 · Aug 17, 2021 · US
Image capturing and display apparatus and wearable device
US-11057551-B2 · Jul 6, 2021 · US
Manufacturing method of sensor chip package structure
US-10964839-B2 · Mar 30, 2021 · US
Configurable laser monitor photodiode in optical modulation amplitude controller
US-10914627-B2 · Feb 9, 2021 · US
Photoelectric conversion substrate, manufacturing method of the same, display panel and display device
US-10868054-B2 · Dec 15, 2020 · US
Display panel and display device
US-10756136-B1 · Aug 25, 2020 · US
Configurable Laser Monitor Photodiode in Optical Modulation Amplitude Controller
US-2020259311-A1 · Aug 13, 2020 · US
Light emitting device
US-10738987-B2 · Aug 11, 2020 · US
Manufacturing method of sensor chip package structure
US-2020251606-A1 · Aug 6, 2020 · US
Optical sensor module and sensor chip thereof
US-10672937-B2 · Jun 2, 2020 · US
High voltage photovoltaics integrated with light emitting diode containing zinc oxide containing layer
US-2020144439-A1 · May 7, 2020 · US
High voltage photovoltaics integrated with light emitting diode containing zinc oxide containing layer
US-10580925-B2 · Mar 3, 2020 · US
Skin treatment device
US-10543040-B2 · Jan 28, 2020 · US
Hair removal device
US-10524861-B2 · Jan 7, 2020 · US
Optically Gated Transistor Selector for Variable Resistive Memory Device
US-2019363211-A1 · Nov 28, 2019 · US
Hair removal device
US-10485612-B2 · Nov 26, 2019 · US
Optocoupler device and frame module thereof
US-10446708-B2 · Oct 15, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01L31/147?
- CPC H01L31/147 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H01L31/147 (Electricity)?
- Our database includes 72 publications tagged with this CPC code.
- Is patent activity under CPC H01L31/147 growing?
- Publication counts under this code: 2 in 2023 vs 4 in 2024 (latest complete years).