Near-infrared cut filter
US-2018356576-A1 · Dec 13, 2018 · US
Squaraine dyes
Squaraine dyes · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C09B57/007 |
| Official title | {Squaraine dyes} |
| Display label | Squaraine dyes |
| Total patents | 230 |
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 | 20 |
| 2018 | 21 |
| 2019 | 22 |
| 2020 | 28 |
| 2021 | 28 |
| 2022 | 28 |
| 2023 | 19 |
| 2024 | 22 |
| 2025 | 15 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Near-infrared-absorbing dye, optical filter, and imaging device
US-2018346729-A1 · Dec 6, 2018 · US
Near-infrared absorbing composition for solid-state imaging device and filter
US-2018319989-A1 · Nov 8, 2018 · US
Squarylium compounds and infrared cut films, infrared cut filters and electronic devices including the same
US-2018282303-A1 · Oct 4, 2018 · US
Squaraine-based molecules as material for organic photoelectric conversion layers in organic photodiodes
US-2018273760-A1 · Sep 27, 2018 · US
Polarizer protective film, polarizing plate comprising same, and liquid crystal display device comprising polarizing plate
US-2018210288-A1 · Jul 26, 2018 · US
Near infrared absorbing curable composition, cured film, solid image pickup element, infrared absorber, and compound
US-2018163022-A1 · Jun 14, 2018 · US
Triphenylene-based materials for organic electroluminescent devices
US-9985226-B2 · May 29, 2018 · US
Phosphorescent metal complex compound radiation emitting component comprising a phosphorescent metal complex compound and method for production of a phosphorescent metal complex compound
US-9966544-B2 · May 8, 2018 · US
Infrared absorbing composition, infrared cut filter, laminate, pattern forming method, solid image pickup element
US-2018120485-A1 · May 3, 2018 · US
Near-infrared absorbent dispersion, aqueous ink for ink jet recording, and aqueous ink set for ink jet recording
US-2018112092-A1 · Apr 26, 2018 · US
Optical filter and imaging device
US-2018095203-A1 · Apr 5, 2018 · US
Using squaraine dyes as near infrared fluorescent sensors for protein detection
US-9920020-B2 · Mar 20, 2018 · US
Optical filter and imaging device
US-2018067243-A1 · Mar 8, 2018 · US
Coloring composition, film, color filter, pattern forming method, method for manufacturing color filter, solid image pickup element, and infrared sensor
US-2018057690-A1 · Mar 1, 2018 · US
Small molecule hole transporting material for optoelectronic and photoelectrochemical devices
US-2018033973-A1 · Feb 1, 2018 · US
Infrared cut filter, kit, and solid-state imaging device
US-2018017720-A1 · Jan 18, 2018 · US
Optical filter, and solid-state image pickup device and camera module using the optical filter
US-9791596-B2 · Oct 17, 2017 · US
Optical filter, and solid-state image pickup device and camera module using the optical filter
US-9791606-B2 · Oct 17, 2017 · US
Squaraine based fluorescent probe and a process for the preparation thereof
US-9791451-B2 · Oct 17, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09B57/007?
- CPC C09B57/007 is the Cooperative Patent Classification code for “Squaraine dyes.”
- How many patents are filed under CPC C09B57/007 (Squaraine dyes)?
- Our database includes 230 publications tagged with this CPC code.
- Is patent activity under CPC C09B57/007 growing?
- Publication counts under this code: 22 in 2024 vs 15 in 2025 (latest complete years).