Display Panel and Display Device
US-2018364505-A1 · Dec 20, 2018 · US
Reflective grating, i.e. Bragg grating
Reflective grating, i.e. Bragg grating · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02F2201/307 |
| Official title | Reflective grating, i.e. Bragg grating |
| Display label | Reflective grating, i.e. Bragg grating |
| Total patents | 250 |
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 | 13 |
| 2017 | 17 |
| 2018 | 28 |
| 2019 | 33 |
| 2020 | 25 |
| 2021 | 30 |
| 2022 | 26 |
| 2023 | 24 |
| 2024 | 27 |
| 2025 | 15 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wavelength division multiplexer
US-10151874-B2 · Dec 11, 2018 · US
Switchable bragg gratings for chromatic error correction of pancharatnam berry phase (PBP) components
US-10151961-B2 · Dec 11, 2018 · US
Display devices
US-2018321558-A1 · Nov 8, 2018 · US
Naked-eye stereoscopic display grating, manufacturing method and display device
US-2018307054-A1 · Oct 25, 2018 · US
Light source color seperation device and display device
US-2018299732-A1 · Oct 18, 2018 · US
Optical modulation employing high contrast grating lens
US-10082684-B2 · Sep 25, 2018 · US
Variable optical retarder
US-2018231813-A1 · Aug 16, 2018 · US
Electro-Holographic Light Field Generators and Displays
US-2018217414-A1 · Aug 2, 2018 · US
SAW Modulators and Light Steering Methods
US-2018217473-A1 · Aug 2, 2018 · US
Method and controller for operating a variable optical retarder and an array
US-10031397-B2 · Jul 24, 2018 · US
Display apparatus and backlight unit thereof
US-2018136520-A1 · May 17, 2018 · US
Wavelength division multiplexer
US-2018113253-A1 · Apr 26, 2018 · US
Variable optical retarder
US-9946134-B2 · Apr 17, 2018 · US
Optical semiconductor device
US-9935426-B2 · Apr 3, 2018 · US
Wavelength filter
US-2018088275-A1 · Mar 29, 2018 · US
Near-to-Eye and See-Through Holographic Displays
US-2018074457-A1 · Mar 15, 2018 · US
Optical phased array using guided resonance with backside reflectors
US-9915832-B2 · Mar 13, 2018 · US
Edge sealant confinement and halo reduction for optical devices
US-2018059320-A1 · Mar 1, 2018 · US
Waveguide device incorporating a light pipe
US-2018059305-A1 · Mar 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02F2201/307?
- CPC G02F2201/307 is the Cooperative Patent Classification code for “Reflective grating, i.e. Bragg grating.”
- How many patents are filed under CPC G02F2201/307 (Reflective grating, i.e. Bragg grating)?
- Our database includes 250 publications tagged with this CPC code.
- Is patent activity under CPC G02F2201/307 growing?
- Publication counts under this code: 27 in 2024 vs 15 in 2025 (latest complete years).