Semiconductor laser for preventing hole burning effect
US-12573815-B2 · Mar 10, 2026 · US
with window regions comprising current blocking layers
with window regions comprising current blocking layers · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01S5/168 |
| Official title | {with window regions comprising current blocking layers} |
| Display label | with window regions comprising current blocking layers |
| Total patents | 60 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 9 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 7 |
| 2024 | 10 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Laser diode and method for manufacturing the same
US-12506324-B2 · Dec 23, 2025 · US
Semiconductor laser having improved facet reliability
US-12500393-B2 · Dec 16, 2025 · US
Edge-emitting semiconductor laser diode and method of manufacturing the same
US-12407147-B2 · Sep 2, 2025 · US
Light-emitting diode
US-2025192521-A1 · Jun 12, 2025 · US
Control Of Current Spread In Semiconductor Laser Devices
US-2024413612-A1 · Dec 12, 2024 · US
Edge-emitting laser diode with increased cod threshold
US-2024332906-A1 · Oct 3, 2024 · US
Control of current spread in semiconductor laser devices
US-12095232-B2 · Sep 17, 2024 · US
Semiconductor laser and production method for a semiconductor laser
US-12009632-B2 · Jun 11, 2024 · US
Semiconductor laser
US-2024113498-A1 · Apr 4, 2024 · US
Laser diode and method for manufacturing the same
US-2024106201-A1 · Mar 28, 2024 · US
Engineered current-density profile diode laser
US-11942759-B2 · Mar 26, 2024 · US
Semiconductor laser having improved facet reliability
US-2024039239-A1 · Feb 1, 2024 · US
Semiconductor laser for preventing hole burning effect
US-2024022042-A1 · Jan 18, 2024 · US
Laser diode and method for manufacturing the same
US-11870219-B2 · Jan 9, 2024 · US
Semiconductor laser element
US-2023387662-A1 · Nov 30, 2023 · US
Optoelectronic semiconductor component, and method for producing an optoelectronic semiconductor component
US-2023369827-A1 · Nov 16, 2023 · US
Semiconductor optical amplifier, optical output device, and distance measuring device
US-11789147-B2 · Oct 17, 2023 · US
Semiconductor laser
US-11777277-B2 · Oct 3, 2023 · US
Engineered current-density profile diode laser
US-2023178960-A1 · Jun 8, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01S5/168?
- CPC H01S5/168 is the Cooperative Patent Classification code for “with window regions comprising current blocking layers.”
- How many patents are filed under CPC H01S5/168 (with window regions comprising current blocking layers)?
- Our database includes 60 publications tagged with this CPC code.
- Is patent activity under CPC H01S5/168 growing?
- Publication counts under this code: 10 in 2024 vs 4 in 2025 (latest complete years).