Method of producing optical fiber preform and optical fiber
US-11795097-B2 · Oct 24, 2023 · US
Hydroxyl ion (OH)
Hydroxyl ion (OH) · 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 | C03B2201/075 |
| Official title | Hydroxyl ion (OH) |
| Display label | Hydroxyl ion (OH) |
| Total patents | 70 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 11 |
| 2017 | 11 |
| 2018 | 7 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 1 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optical fiber glass preform and method for manufacturing optical fiber glass preform
US-11680007-B2 · Jun 20, 2023 · US
Optical fibers and method of making the same
US-2023167002-A1 · Jun 1, 2023 · US
Methods of bonding an optical fiber to a substrate using a laser and assemblies fabricated by the same
US-11422310-B2 · Aug 23, 2022 · US
Quartz fibre with hydrogen barrier layer and method for the production thereof
US-2022227657-A1 · Jul 21, 2022 · US
Titanium-containing quartz glass having excellent uv absorption, and method for producing same
US-2022204387-A1 · Jun 30, 2022 · US
Method of manufacturing optical fiber preform and optical fiber preform
US-11345627-B2 · May 31, 2022 · US
Preparation of carbon-doped silicon dioxide granulate as an intermediate in the preparation of quartz glass
US-11339076-B2 · May 24, 2022 · US
Optical fiber, method for manufacturing optical fiber, and optical fiber preform
US-11168015-B2 · Nov 9, 2021 · US
Methods of bonding an optical fiber to a substrate using a laser and assemblies fabricated by the same
US-2020369566-A1 · Nov 26, 2020 · US
Method of producing optical fiber preform and optical fiber
US-2020262736-A1 · Aug 20, 2020 · US
Method of producing optical fiber preform and optical fiber
US-10676387-B2 · Jun 9, 2020 · US
Microheater comprising a rare earth-doped optical fiber
US-2020174184-A1 · Jun 4, 2020 · US
Optical fiber, method for manufacturing optical fiber, and optical fiber preform
US-2020048137-A1 · Feb 13, 2020 · US
Optical fiber base material manufacturing method, optical fiber base material, and optical fiber
US-2019292089-A1 · Sep 26, 2019 · US
Method of manufacturing optical fiber preform and optical fiber preform
US-2019270662-A1 · Sep 5, 2019 · US
Low scattering silica glass and method for heat-treating silica glass
US-10370281-B2 · Aug 6, 2019 · US
Discharge lamp
US-10354856-B2 · Jul 16, 2019 · US
Discharge lamp
US-2019172698-A1 · Jun 6, 2019 · US
Reducing carbon content of silicon dioxide granulate and the preparation of a quartz glass body
US-2019077672-A1 · Mar 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03B2201/075?
- CPC C03B2201/075 is the Cooperative Patent Classification code for “Hydroxyl ion (OH).”
- How many patents are filed under CPC C03B2201/075 (Hydroxyl ion (OH))?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC C03B2201/075 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).