Illumination device, distance measuring device, and in-vehicle device
US-2025362411-A1 · Nov 27, 2025 · US
comprising three or more reflectors
comprising three or more reflectors · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01S3/081 |
| Official title | comprising three or more reflectors |
| Display label | comprising three or more reflectors |
| Total patents | 47 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 6 |
| 2017 | 10 |
| 2018 | 8 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Tunable laser and optical semiconductor element
US-2025273932-A1 · Aug 28, 2025 · US
Fiber segment amplifier assembly
US-2025253606-A1 · Aug 7, 2025 · US
Laser apparatus and electronic device manufacturing method
US-2024235149-A1 · Jul 11, 2024 · US
Laser apparatus
US-2024072509-A1 · Feb 29, 2024 · US
Systems for photonic integration in non-polar and semi-polar oriented wave-guided optical devices
US-11677213-B1 · Jun 13, 2023 · US
Optical arrangements with disk-shaped laser-active mediums
US-11271357-B2 · Mar 8, 2022 · US
Reflector structure for tunable laser and tunable laser
US-11211767-B2 · Dec 28, 2021 · US
Systems for photonic integration in non-polar and semi-polar oriented wave-guided optical devices
US-11201452-B1 · Dec 14, 2021 · US
Laser device
US-2021184429-A1 · Jun 17, 2021 · US
Laser resonator, and method of designing laser resonator
US-10763634-B2 · Sep 1, 2020 · US
Methods for photonic integration in non-polar and semi-polar oriented wave-guided optical devices
US-10630050-B1 · Apr 21, 2020 · US
Reflector structure for tunable laser and tunable laser
US-2020076155-A1 · Mar 5, 2020 · US
Laser resonator, and method of designing laser resonator
US-2019267769-A1 · Aug 29, 2019 · US
Divided pulse lasers
US-2019229487-A1 · Jul 25, 2019 · US
Optical arrangements with disk-shaped laser-active mediums
US-2019173257-A1 · Jun 6, 2019 · US
Divided pulse lasers
US-10109976-B2 · Oct 23, 2018 · US
Methods and apparatus for photonic integration in non-polar and semi-polar oriented wave-guided optical devices
US-10090638-B1 · Oct 2, 2018 · US
Laser apparatus and method having plural excitation sources with associated beam splitting arrangements for adaptive control
US-10084279-B2 · Sep 25, 2018 · US
Laser system
US-10050408-B2 · Aug 14, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01S3/081?
- CPC H01S3/081 is the Cooperative Patent Classification code for “comprising three or more reflectors.”
- How many patents are filed under CPC H01S3/081 (comprising three or more reflectors)?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC H01S3/081 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).