Light absorption filter, optical filter, manufacturing method for optical filter, organic electroluminescent display device, inorganic electroluminescent display device, and liquid crystal display device
US-2025123432-A1 · Apr 17, 2025 · US
This page is not indexed by search engines while we improve data quality.
from other compounds {, e.g. other heterocyclic compounds}
from other compounds {, e.g. other heterocyclic compounds} · 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 | C09B49/12 |
| Official title | from other compounds {, e.g. other heterocyclic compounds} |
| Display label | from other compounds {, e.g. other heterocyclic compounds} |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Absorbent articles containing wetness indicating compositions and methods for manufacture
US-2023414416-A1 · Dec 28, 2023 · US
Infrared cut filter, solid-state imaging device, and imaging/display apparatus
US-10345498-B2 · Jul 9, 2019 · US
Coloring composition, cured film, color filter, method for manufacturing color filter, solid-state imaging device, image display device, organic electroluminescent element, colorant, and method for producing colorant
US-10317794-B2 · Jun 11, 2019 · US
Merocyanine-based compounds, and dyes, kits and contrast medium compositions for labelling biomolecules comprising the same
US-9969887-B2 · May 15, 2018 · US
Merocyanine-based compounds, and dyes, kits and contrast medium compositions for labelling biomolecules comprising the same
US-2017306155-A1 · Oct 26, 2017 · US
Photopolymer formulations for producing holographic media having highly crosslinked matrix polymers
US-9760060-B2 · Sep 12, 2017 · US
Coloring composition, cured film, color filter, method for manufacturing color filter, solid-state imaging device, image display device, organic electroluminescent element, colorant, and method for producing colorant
US-2017010530-A1 · Jan 12, 2017 · US
Compound, and method for measuring iron concentration by using novel compound as chelate color former
US-9448244-B2 · Sep 20, 2016 · US
Photopolymer formulations for producing holographic media having highly crosslinked matrix polymers
US-2016054704-A1 · Feb 25, 2016 · US
Infrared cut filter, solid-state imaging device, and imaging/display apparatus
US-2016018576-A1 · Jan 21, 2016 · US
Photopolymer formulation for producing holographic media having highly crosslinked matrix polymers
US-9146456-B2 · Sep 29, 2015 · US
Novel compound, and method for measuring iron concentration by using novel compound as chelate color former
US-2015260734-A1 · Sep 17, 2015 · US