Laminate with low reflectance at high incidence angle
US-2024009969-A1 · Jan 11, 2024 · US
Polarizing, birefringent, filtering
Polarizing, birefringent, filtering · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B32B2307/42 |
| Official title | Polarizing, birefringent, filtering |
| Display label | Polarizing, birefringent, filtering |
| Total patents | 1,606 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 82 |
| 2016 | 123 |
| 2017 | 135 |
| 2018 | 152 |
| 2019 | 193 |
| 2020 | 189 |
| 2021 | 164 |
| 2022 | 174 |
| 2023 | 119 |
| 2024 | 159 |
| 2025 | 94 |
| 2026 | 22 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Glass composite, casing, display device and terminal device
US-11858844-B2 · Jan 2, 2024 · US
Multilayer retardation film and method for producing same
US-2015378079-A1 · Dec 31, 2015 · US
Optical laminated body, method for manufacturing same, and polarization plate and liquid-crystal display device using optical laminated body
US-2015355386-A1 · Dec 10, 2015 · US
Optical layered object, polarizer obtained using same, and image display device
US-2015355385-A1 · Dec 10, 2015 · US
Polarizer Protecting Film, Method for Production Thereof, Polarizing Plate, Optical Film, and Image Display Device
US-2015346389-A1 · Dec 3, 2015 · US
See-through computer display systems
US-2015316770-A1 · Nov 5, 2015 · US
PROTECTIVE FILM (As Amended)
US-2015315346-A1 · Nov 5, 2015 · US
Optical laminate with polarizing film
US-2015316696-A1 · Nov 5, 2015 · US
See-through computer display systems
US-2015316772-A1 · Nov 5, 2015 · US
See-through computer display systems
US-2015316771-A1 · Nov 5, 2015 · US
See-through computer display systems
US-2015316769-A1 · Nov 5, 2015 · US
See-through computer display systems
US-2015309314-A1 · Oct 29, 2015 · US
See-through computer display systems
US-2015309313-A1 · Oct 29, 2015 · US
Preparing method for thin polarizer, thin polarizer and polarizing plate comprising the same
US-2015301252-A1 · Oct 22, 2015 · US
Protection film and polarization plate provided with protection film
US-2015301248-A1 · Oct 22, 2015 · US
Low distortion interlayer
US-2015298447-A1 · Oct 22, 2015 · US
Thin film polarizer, method of manufacturing the same, and polarizing plate and display device including the same
US-9158051-B2 · Oct 13, 2015 · US
Display device and method of manufacturing the same
US-2015277110-A1 · Oct 1, 2015 · US
Flexible display device and method of manufacturing the same
US-2015266272-A1 · Sep 24, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B32B2307/42?
- CPC B32B2307/42 is the Cooperative Patent Classification code for “Polarizing, birefringent, filtering.”
- How many patents are filed under CPC B32B2307/42 (Polarizing, birefringent, filtering)?
- Our database includes 1,606 publications tagged with this CPC code.
- Is patent activity under CPC B32B2307/42 growing?
- Publication counts under this code: 159 in 2024 vs 94 in 2025 (latest complete years).