On-chip fourier transform spectrometer based on double-layer helical waveguide
US-2024337536-A1 · Oct 10, 2024 · US
in optical fibres
in optical fibres · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02F1/2252 |
| Official title | {in optical fibres} |
| Display label | in optical fibres |
| Total patents | 70 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2017 | 3 |
| 2018 | 9 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 8 |
| 2022 | 12 |
| 2023 | 4 |
| 2024 | 11 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optical modulator, optical receiver, conversion device, spin orbital direct product state generation device, and quantum computer
US-12105397-B2 · Oct 1, 2024 · US
Optical waveguide element, optical modulator, optical modulation module, and optical transmission device
US-2024319558-A1 · Sep 26, 2024 · US
Optical device, optical module, and optical transceiver
US-2024272512-A1 · Aug 15, 2024 · US
Optical voltage probe
US-11994539-B2 · May 28, 2024 · US
Pluggable optical module, optical communication system and control method of pluggable optical module
US-11921398-B2 · Mar 5, 2024 · US
Optical modulator, phase shifter, and optical communication apparatus
US-2023333439-A1 · Oct 19, 2023 · US
Ultra-compact phase modulators based on index and loss modulation in ring resonator cavities
US-2023296956-A1 · Sep 21, 2023 · US
Narrow linewidth laser
US-2023261440-A1 · Aug 17, 2023 · US
Optical arbitrary pulse pattern generator
US-2023221613-A1 · Jul 13, 2023 · US
Pluggable optical module, optical communication system, and optical communication method
US-11493710-B2 · Nov 8, 2022 · US
Optical voltage prove
US-2022291260-A1 · Sep 15, 2022 · US
Optical modulator having screw-fastened protrusion
US-11397341-B2 · Jul 26, 2022 · US
Pluggable optical module, optical communication system and control method of pluggable optical module
US-2022214593-A1 · Jul 7, 2022 · US
Optical modulation element and optical modulation module
US-2022197103-A1 · Jun 23, 2022 · US
Optical waveguide apparatus
US-11353653-B2 · Jun 7, 2022 · US
Optical modulator, optical receiver, conversion device, spin orbital direct product state generation device, and quantum computer
US-2022171251-A1 · Jun 2, 2022 · US
Optical waveguide element, optical modulator, optical modulation module, and optical transmission device
US-11333909-B2 · May 17, 2022 · US
Pluggable optical module, optical communication system and control method of pluggable optical module
US-11300851-B2 · Apr 12, 2022 · US
Surveying instrument with optical stage compensating for temperature variations
US-11300409-B2 · Apr 12, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02F1/2252?
- CPC G02F1/2252 is the Cooperative Patent Classification code for “in optical fibres.”
- How many patents are filed under CPC G02F1/2252 (in optical fibres)?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC G02F1/2252 growing?
- Publication counts under this code: 11 in 2024 vs 5 in 2025 (latest complete years).