Laser device
US-2023234170-A1 · Jul 27, 2023 · US
comprising a special atmosphere inside the housing
comprising a special atmosphere inside the housing · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01S3/027 |
| Official title | {comprising a special atmosphere inside the housing} |
| Display label | comprising a special atmosphere inside the housing |
| Total patents | 68 |
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 | 8 |
| 2016 | 5 |
| 2017 | 4 |
| 2018 | 9 |
| 2019 | 10 |
| 2020 | 7 |
| 2021 | 10 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Controlling pressure in a cavity of a light source
US-11581692-B2 · Feb 14, 2023 · US
Laser systems and optical devices for manipulating laser beams
US-11526001-B2 · Dec 13, 2022 · US
Solid state laser apparatus
US-11322903-B2 · May 3, 2022 · US
Wavelength converter
US-11271360-B2 · Mar 8, 2022 · US
Laser oscillator
US-11264774-B2 · Mar 1, 2022 · US
Passivation of nonlinear optical crystals
US-11227770-B2 · Jan 18, 2022 · US
High temperature optical molecular anti-contamination getter system
US-11152759-B2 · Oct 19, 2021 · US
Semiconductor light emitting device and external resonance type laser device
US-2021296851-A1 · Sep 23, 2021 · US
Amplitude-modulated laser
US-2021218218-A1 · Jul 15, 2021 · US
Solid-state laser device
US-11063403-B2 · Jul 13, 2021 · US
Laser machining device and laser oscillator
US-11050212-B2 · Jun 29, 2021 · US
Laser apparatus and EUV light generation system
US-11043784-B2 · Jun 22, 2021 · US
Laser processor and laser beam machine
US-2021151946-A1 · May 20, 2021 · US
Laser machining device
US-11000918-B2 · May 11, 2021 · US
Laser oscillator
US-2021111531-A1 · Apr 15, 2021 · US
Optical system element, for receiving a pressurised functional fluid
US-2021036478-A1 · Feb 4, 2021 · US
Controlling pressure in a cavity of a light source
US-2020403370-A1 · Dec 24, 2020 · US
Method and system for compact efficient laser architecture
US-10777964-B2 · Sep 15, 2020 · US
Solid state laser apparatus
US-2020194956-A1 · Jun 18, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01S3/027?
- CPC H01S3/027 is the Cooperative Patent Classification code for “comprising a special atmosphere inside the housing.”
- How many patents are filed under CPC H01S3/027 (comprising a special atmosphere inside the housing)?
- Our database includes 68 publications tagged with this CPC code.
- Is patent activity under CPC H01S3/027 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).