Manufacturing method for optical fiber and manufacturing apparatus for optical fiber
US-11667560-B2 · Jun 6, 2023 · US
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Erbium
Erbium · 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 | C03C2201/3476 |
| Official title | Erbium |
| Display label | Erbium |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2019 | 5 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process of fabrication of Erbium and Ytterbium-co-doped multi-elements silica glass based cladding-pumped fiber
US-11407671-B2 · Aug 9, 2022 · US
Glass sheet with a high luminous transmittance and with warm-toned to neutral colored edges
US-11306020-B2 · Apr 19, 2022 · US
Glass sheet approaching neutrality irrespective of its thickness
US-11214507-B2 · Jan 4, 2022 · US
Manufacturing method for optical fiber and manufacturing apparatus for optical fiber
US-2021292223-A1 · Sep 23, 2021 · US
Miserite crystallized glass for artificial tooth and method for coloring same
US-10913679-B2 · Feb 9, 2021 · US
Wollastonite crystallized glass for artificial tooth and method for coloring same
US-10889522-B2 · Jan 12, 2021 · US
Process of fabrication of erbium and ytterbium-co-doped multi-elements silica glass based cladding-pumped fiber
US-2019375672-A1 · Dec 12, 2019 · US
Glass sheet with a high luminous transmittance and with warm-toned to neutral colored edges
US-2019359518-A1 · Nov 28, 2019 · US
Glass sheet approaching neutrality irrespective of its thickness
US-2019284088-A1 · Sep 19, 2019 · US
Miserite crystallized glass for artificial tooth and method for coloring same
US-2019225533-A1 · Jul 25, 2019 · US
Wollastonite crystallized glass for artificial tooth and method for coloring same
US-2019194058-A1 · Jun 27, 2019 · US