Photochromic film
US-10877301-B2 · Dec 29, 2020 · US
pleochroic
pleochroic · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02F2202/043 |
| Official title | pleochroic |
| Display label | pleochroic |
| Total patents | 152 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 11 |
| 2018 | 16 |
| 2019 | 22 |
| 2020 | 25 |
| 2021 | 15 |
| 2022 | 12 |
| 2023 | 27 |
| 2024 | 12 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing optical device by varying rubbing strength
US-10845654-B2 · Nov 24, 2020 · US
Optical device
US-2020333660-A1 · Oct 22, 2020 · US
Light control sheet and light control window
US-2020278566-A1 · Sep 3, 2020 · US
Light control film, light control system, and light control member
US-2020271964-A1 · Aug 27, 2020 · US
Liquid crystal panel, liquid crystal display, and method for manufacturing a yellow-dye polarizer
US-10585306-B2 · Mar 10, 2020 · US
Image quality improving film and preparation method thereof, display panel and display device
US-10571731-B2 · Feb 25, 2020 · US
Dye compound, polarizer using the dye compound, and display device using the dye compound
US-10519316-B2 · Dec 31, 2019 · US
Display panel and manufacturing method therefor
US-10520766-B2 · Dec 31, 2019 · US
Electric response infrared reflection device and preparation method thereof
US-2019391437-A1 · Dec 26, 2019 · US
Dichroic dye compound, polarizing film, and uses thereof
US-10514484-B2 · Dec 24, 2019 · US
Laminate and image display device
US-10481312-B2 · Nov 19, 2019 · US
Methods and apparatus for liquid crystal photoalignment
US-10459293-B2 · Oct 29, 2019 · US
Liquid crystal display device and driving method thereof
US-10451910-B2 · Oct 22, 2019 · US
Photochromic film
US-2019317351-A1 · Oct 17, 2019 · US
Display device and method for manufacturing the same
US-10429010-B2 · Oct 1, 2019 · US
Switching layer for use in an optical switching element
US-2019284474-A1 · Sep 19, 2019 · US
Optical film and liquid crystal display device
US-2019250457-A1 · Aug 15, 2019 · US
Display device having dichroic reflection layer
US-2019250464-A1 · Aug 15, 2019 · US
Device for regulating the passage of energy
US-10364356-B2 · Jul 30, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02F2202/043?
- CPC G02F2202/043 is the Cooperative Patent Classification code for “pleochroic.”
- How many patents are filed under CPC G02F2202/043 (pleochroic)?
- Our database includes 152 publications tagged with this CPC code.
- Is patent activity under CPC G02F2202/043 growing?
- Publication counts under this code: 12 in 2024 vs 7 in 2025 (latest complete years).