De novo synthesis of bacteriochlorins
US-2018072746-A1 · Mar 15, 2018 · US
Porphines; Azaporphines {(non-dyeing compounds C07D487/22)}
Porphines; Azaporphines {(non-dyeing compounds C07D487/22)} · 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 | C09B47/00 |
| Official title | Porphines; Azaporphines {(non-dyeing compounds C07D487/22)} |
| Display label | Porphines; Azaporphines {(non-dyeing compounds C07D487/22)} |
| Total patents | 130 |
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 | 21 |
| 2016 | 19 |
| 2017 | 19 |
| 2018 | 10 |
| 2019 | 14 |
| 2020 | 10 |
| 2021 | 10 |
| 2022 | 9 |
| 2023 | 10 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Photoelectric conversion film, photoelectric conversion element and electronic device
US-2017373258-A1 · Dec 28, 2017 · US
De novo synthesis of bacteriochlorins
US-9822123-B2 · Nov 21, 2017 · US
Compound for organic photoelectric device and organic photoelectric device, image sensor, and electronic device including the same
US-9818956-B2 · Nov 14, 2017 · US
Porphyrin based sensitizer for dye-sensitized solar cell
US-9812658-B2 · Nov 7, 2017 · US
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and chlorogallium phthalocyanine crystal and method for producing the same
US-2017299970-A1 · Oct 19, 2017 · US
Electro-polarizable compound and capacitor
US-2017287637-A1 · Oct 5, 2017 · US
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and chlorogallium phthalocyanine crystal and method for producing the same
US-9720337-B2 · Aug 1, 2017 · US
Functionalized porous silicon nanoparticles and use thereof in photodynamic therapy
US-9694074-B2 · Jul 4, 2017 · US
Transparent conductive film, structure, information input device, and electrode production method
US-2017174888-A1 · Jun 22, 2017 · US
Photoelectric conversion element and solar cell
US-9640330-B2 · May 2, 2017 · US
Perylene functionalized porphyrin dyes for dye-sensitized solar cells
US-9627633-B2 · Apr 18, 2017 · US
Fusing porphyrins with polycyclic aromatic hydrocarbons and heterocycles for optoelectronic applications
US-2017092883-A1 · Mar 30, 2017 · US
Pigment multimer, coloring composition, cured film, color filter, method for manufacturing color filter, solid-state imaging element, and image display device
US-9605101-B2 · Mar 28, 2017 · US
Star polymer nanoshells and methods of preparation thereof
US-9597405-B2 · Mar 21, 2017 · US
Photoelectric conversion film, photoelectric conversion element and electronic device
US-2017054089-A1 · Feb 23, 2017 · US
Color filter and display device comprising the same
US-2017045654-A1 · Feb 16, 2017 · US
Ambient temperature liquid-form organic materials and use thereof
US-9570691-B2 · Feb 14, 2017 · US
Perylene functionalized porphyrin dyes for dye-sensitized solar cells
US-2017033302-A1 · Feb 2, 2017 · US
Porphyrin photosensitive dye and photoelectric conversion device utilizing the same
US-9546278-B2 · Jan 17, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09B47/00?
- CPC C09B47/00 is the Cooperative Patent Classification code for “Porphines; Azaporphines {(non-dyeing compounds C07D487/22)}.”
- How many patents are filed under CPC C09B47/00 (Porphines; Azaporphines {(non-dyeing compounds C07D487/22)})?
- Our database includes 130 publications tagged with this CPC code.
- Is patent activity under CPC C09B47/00 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).