Zinc oxide-based quantum cascade laser element
US-2026018865-A1 · Jan 15, 2026 · US
in AIIBVI compounds, e.g. ZnCdSe- laser
in AIIBVI compounds, e.g. ZnCdSe- laser · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01S5/347 |
| Official title | in AIIBVI compounds, e.g. ZnCdSe- laser |
| Display label | in AIIBVI compounds, e.g. ZnCdSe- laser |
| Total patents | 32 |
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 | 1 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 2 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optical semiconductor device
US-2025343393-A1 · Nov 6, 2025 · US
Methods for obtaining an n-type doped metal chalcogenide quantum dot solid-state element with optical gain and a light emitter including the element, and the obtained element and light emitter
US-12344783-B2 · Jul 1, 2025 · US
Methods for obtaining an n-type doped metal chalcogenide quantum dot solid-state element with optical gain and a light emitter including the element, and the obtained element and light emitter
US-2022235263-A1 · Jul 28, 2022 · US
Optically cooled platform for thermal management applications
US-11349279-B2 · May 31, 2022 · US
Plasmonic quantum well laser
US-10965101-B2 · Mar 30, 2021 · US
Fabrication of ellipsoidal or semi-ellipsoidal semiconductor structures
US-10958040-B1 · Mar 23, 2021 · US
Fabrication of ellipsoidal or semi-ellipsoidal semiconductor structures
US-2021083453-A1 · Mar 18, 2021 · US
Addressable laser array device including vertical cavity surface emitting lasers adopting nanostructure reflector disposed at intersections of plural wiring patterns
US-10938179-B2 · Mar 2, 2021 · US
Devices with quantum dots
US-10804678-B2 · Oct 13, 2020 · US
Optically Cooled Platform For Thermal Management Applications
US-2020244038-A1 · Jul 30, 2020 · US
Unipolar light devices integrated with foreign substrates and methods of fabrication
US-2020185885-A1 · Jun 11, 2020 · US
Addressable laser array device including vertical cavity surface emitting lasers adopting nanostructure reflector
US-2020083669-A1 · Mar 12, 2020 · US
Plasmonic quantum well laser
US-2020083667-A1 · Mar 12, 2020 · US
Plasmonic quantum well laser
US-10566764-B2 · Feb 18, 2020 · US
Plasmonic quantum well laser
US-2019386453-A1 · Dec 19, 2019 · US
Semiconductor laser, semiconductor laser set and display device
US-10429664-B2 · Oct 1, 2019 · US
Devices with quantum dots
US-2019089129-A1 · Mar 21, 2019 · US
Semiconductor laser resonator and semiconductor laser device including the same
US-10211597-B2 · Feb 19, 2019 · US
High power CW mid-IR laser
US-10211600-B2 · Feb 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01S5/347?
- CPC H01S5/347 is the Cooperative Patent Classification code for “in AIIBVI compounds, e.g. ZnCdSe- laser.”
- How many patents are filed under CPC H01S5/347 (in AIIBVI compounds, e.g. ZnCdSe- laser)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC H01S5/347 growing?
- Publication counts under this code: 2 in 2022 vs 2 in 2025 (latest complete years).