Naphthalene-type compound and preparation method therefore and use therefore
US-2025382258-A1 · Dec 18, 2025 · US
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being formed by two rings
being formed by two rings · 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 | C07C215/86 |
| Official title | being formed by two rings |
| Display label | being formed by two rings |
| Total patents | 7 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Indane bis-o-aminophenols and polymers prepared therefrom
US-2025188015-A1 · Jun 12, 2025 · US
Squarylium compound, light-emitting composition, and light-emitting film
US-11261374-B2 · Mar 1, 2022 · US
Squarylium compound, light-emitting composition, and light-emitting film
US-2021261858-A1 · Aug 26, 2021 · US
Methods for producing polycyclic aromatic aminophenol compound and resin composition, and polycyclic aromatic aminophenol compound, resin composition, and cured product
US-10577307-B2 · Mar 3, 2020 · US
Methods for producing polycyclic aromatic aminophenol compound and resin composition, and polycyclic aromatic aminophenol compound, resin composition, and cured product
US-2019144372-A1 · May 16, 2019 · US
Two-photon absorbing compound with methods of synthesis and use
US-9353399-B2 · May 31, 2016 · US