Window film and method for operating the same
US-2025102845-A1 · Mar 27, 2025 · US
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Complex metal compounds of azo dyes
Complex metal compounds of azo 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 | C09B45/00 |
| Official title | Complex metal compounds of azo dyes |
| Display label | Complex metal compounds of azo dyes |
| Total patents | 10 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optical structure, camera module, and electronic device
US-11650414-B2 · May 16, 2023 · US
Optical structure, camera module, and electronic device
US-2020301133-A1 · Sep 24, 2020 · US
Coloring composition, color filter, pattern forming method, solid-state imaging device, and image display device
US-10641935-B2 · May 5, 2020 · US
Labeled evans blue dye derivative for in vivo serum albumin labeling
US-10258701-B2 · Apr 16, 2019 · US
Coloring composition, color filter, pattern forming method, solid-state imaging device, and image display device
US-2018252852-A1 · Sep 6, 2018 · US
Labeling reagents and methods of their use
US-9645153-B2 · May 9, 2017 · US
Labeled evans blue dye derivative for in vivo serum albumin labeling
US-2016287730-A1 · Oct 6, 2016 · US
Labeling Reagents and Methods of Their Use
US-2015355186-A1 · Dec 10, 2015 · US
Labeling reagents and methods of their use
US-9140706-B2 · Sep 22, 2015 · US