Optical glass, optical element composed of optical glass, optical system interchangeable lens, and optical device
US-12466759-B2 · Nov 11, 2025 · US
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Gadolinium
Gadolinium · 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 | C03C2201/3452 |
| Official title | Gadolinium |
| Display label | Gadolinium |
| Total patents | 6 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optical glass, optical element composed of optical glass, optical system interchangeable lens, and optical device
US-2022064051-A1 · Mar 3, 2022 · US
Optical glass, optical element composed of optical glass, optical system interchangeable lens, and optical device
US-11203548-B2 · Dec 21, 2021 · US
Optical glass, optical element composed of optical glass, optical system interchangeable lens, and optical device
US-2020223739-A1 · Jul 16, 2020 · US
Optical glass
US-10287205-B2 · May 14, 2019 · US
Optical glass
US-2018016182-A1 · Jan 18, 2018 · US