Laminated pane for a head-up display system with p-polarized radiation
US-2024399718-A1 · Dec 5, 2024 · US
Filters employing polarising elements, e.g. Lyot or Solc filters (G02B5/3016 takes precedence)
Filters employing polarising elements, e.g. Lyot or Solc filters (G02B5/3016 takes precedence) · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02B27/288 |
| Official title | {Filters employing polarising elements, e.g. Lyot or Solc filters (G02B5/3016 takes precedence)} |
| Display label | Filters employing polarising elements, e.g. Lyot or Solc filters (G02B5/3016 takes precedence) |
| Total patents | 449 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 20 |
| 2017 | 19 |
| 2018 | 32 |
| 2019 | 35 |
| 2020 | 52 |
| 2021 | 55 |
| 2022 | 48 |
| 2023 | 55 |
| 2024 | 56 |
| 2025 | 55 |
| 2026 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electromagnetic wave reflecting member
US-2018356644-A1 · Dec 13, 2018 · US
Stabilized broadband light source apparatus and methods
US-2018314007-A1 · Nov 1, 2018 · US
Reflection member available for heat shield use and projector including reflection member
US-10061187-B2 · Aug 28, 2018 · US
Circular polarizing plate and bendable display device
US-10036840-B2 · Jul 31, 2018 · US
Switchable privacy display based on striped polarizer
US-10013947-B2 · Jul 3, 2018 · US
Display apparatus
US-9995959-B2 · Jun 12, 2018 · US
Selective screen privacy
US-9928372-B2 · Mar 27, 2018 · US
Biomimetic integrated optical sensor (BIOS) system
US-9906718-B2 · Feb 27, 2018 · US
Optical observation device and method of controlling optical observation device
US-2018045869-A1 · Feb 15, 2018 · US
Biocular compact collimation apparatus
US-2018031835-A1 · Feb 1, 2018 · US
Display device and display control method
US-9846343-B2 · Dec 19, 2017 · US
Optical filters with engineered birefringence
US-9841606-B2 · Dec 12, 2017 · US
Transparent screen
US-2017343830-A1 · Nov 30, 2017 · US
Control of polarization and diffractive artifact resolution in retro-imaging systems
US-9798154-B2 · Oct 24, 2017 · US
Optical filters with engineered birefringence
US-2017299881-A1 · Oct 19, 2017 · US
Photon entanglement router
US-9784622-B2 · Oct 10, 2017 · US
Light Reflection Film And Laminate Having The Light Reflection Film
US-2017285235-A1 · Oct 5, 2017 · US
Dark line compensation in polarized three-dimensional viewing
US-9778473-B1 · Oct 3, 2017 · US
Compact near-eye display optics for higher optical performance
US-2017227770-A1 · Aug 10, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02B27/288?
- CPC G02B27/288 is the Cooperative Patent Classification code for “Filters employing polarising elements, e.g. Lyot or Solc filters (G02B5/3016 takes precedence).”
- How many patents are filed under CPC G02B27/288 (Filters employing polarising elements, e.g. Lyot or Solc filters (G02B5/3016 takes precedence))?
- Our database includes 449 publications tagged with this CPC code.
- Is patent activity under CPC G02B27/288 growing?
- Publication counts under this code: 56 in 2024 vs 55 in 2025 (latest complete years).