Apparatus, Systems, and Methods for On-Chip Spectroscopy Using Optical Switches
US-2019331529-A1 · Oct 31, 2019 · US
Physics
Physics · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02F1/313 |
| Official title | — |
| Display label | Physics (mapped technology topic) |
| Total patents | 199 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 9 |
| 2017 | 13 |
| 2018 | 14 |
| 2019 | 22 |
| 2020 | 20 |
| 2021 | 20 |
| 2022 | 28 |
| 2023 | 19 |
| 2024 | 22 |
| 2025 | 16 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Continuously tunable optical filter
US-2019293872-A1 · Sep 26, 2019 · US
Apparatus, systems, and methods for on-chip spectroscopy using optical switches
US-10386237-B2 · Aug 20, 2019 · US
Vanadium dioxide-based optical and radiofrequency switches
US-2019155063-A1 · May 23, 2019 · US
Systems, devices, and methods for optical waveguides
US-2019113745-A1 · Apr 18, 2019 · US
Systems, devices, and methods for optical waveguides
US-2019113825-A1 · Apr 18, 2019 · US
Systems, devices, and methods for optical waveguides
US-2019113747-A1 · Apr 18, 2019 · US
Optical signal processing device
US-10254625-B2 · Apr 9, 2019 · US
Optical delay lines for electrical skew compensation
US-2019089465-A1 · Mar 21, 2019 · US
Method and system for integrated power combiners
US-10222637-B2 · Mar 5, 2019 · US
Vanadium dioxide-based optical and radiofrequency switches
US-10216013-B2 · Feb 26, 2019 · US
Optical waveguide circuit device
US-2019033530-A1 · Jan 31, 2019 · US
Dynamically tunable materials for parity-time symmetric electro-optical devices
US-10178735-B1 · Jan 8, 2019 · US
Liquid crystal alignment on chalcogenide glasses
US-10168597-B2 · Jan 1, 2019 · US
Devices, systems, and methods for light emission and detection using amorphous silicon
US-2018330946-A1 · Nov 15, 2018 · US
Optical delay lines for electrical skew compensation
US-10110318-B2 · Oct 23, 2018 · US
Intersecting splitter, and multicast switch and multicast switch module using same
US-10101530-B2 · Oct 16, 2018 · US
Apparatus, Systems, and Methods for On-Chip Spectroscopy Using Optical Switches
US-2018274981-A1 · Sep 27, 2018 · US
Photonic device
US-2018267386-A1 · Sep 20, 2018 · US
Vanadium dioxide-based optical and radiofrequency switches
US-2018259796-A1 · Sep 13, 2018 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02F1/313?
- CPC G02F1/313 is the Cooperative Patent Classification code for “Physics.”
- How many patents are filed under CPC G02F1/313 (Physics)?
- Our database includes 199 publications tagged with this CPC code.
- Is patent activity under CPC G02F1/313 growing?
- Publication counts under this code: 22 in 2024 vs 16 in 2025 (latest complete years).