Low attenuation fiber with viscosity matched core and inner clad
US-2017219770-A1 · Aug 3, 2017 · US
Fibres composed of different sorts of glass, {e.g. glass optical fibres}(C03B37/0253, C03B37/028 take precedence)
Fibres composed of different sorts of glass, {e.g. glass optical fibres}(C03B37/0253, C03B37/028 take precedence) · 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 | C03B37/027 |
| Official title | Fibres composed of different sorts of glass, {e.g. glass optical fibres}(C03B37/0253, C03B37/028 take precedence) |
| Display label | Fibres composed of different sorts of glass, {e.g. glass optical fibres}(C03B37/0253, C03B37/028 take precedence) |
| Total patents | 284 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 30 |
| 2016 | 24 |
| 2017 | 24 |
| 2018 | 19 |
| 2019 | 28 |
| 2020 | 31 |
| 2021 | 28 |
| 2022 | 27 |
| 2023 | 25 |
| 2024 | 18 |
| 2025 | 27 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optical fiber with reducing hydrogen sensitivity
US-2017197878-A1 · Jul 13, 2017 · US
Production method of optical fiber preform, and production method of optical fiber
US-9695079-B2 · Jul 4, 2017 · US
Multicore fiber and manufacturing method of multicore fiber
US-2017160466-A1 · Jun 8, 2017 · US
Method of manufacturing preforms for optical fibres having low water peak
US-9656902-B2 · May 23, 2017 · US
Optical fiber and method of manufacturing optical fiber
US-2017045681-A1 · Feb 16, 2017 · US
Fiber Bragg Gratings in Carbon-Coated Optical Fibers and Techniques for Making Same
US-2016361779-A1 · Dec 15, 2016 · US
Non-circular multicore fiber and method of manufacture
US-2016349447-A1 · Dec 1, 2016 · US
Systems and methods for producing robust chalcogenide optical fibers
US-2016326041-A1 · Nov 10, 2016 · US
Systems and methods for producing robust chalcogenide optical fibers
US-9488775-B2 · Nov 8, 2016 · US
Multicore optical fiber and optical module
US-9482814-B2 · Nov 1, 2016 · US
Optical fiber producing method and apparatus and optical fiber
US-9475722-B2 · Oct 25, 2016 · US
Low attenuation fiber with stress relieving layer and a method of making such
US-2016299289-A1 · Oct 13, 2016 · US
Hydrogen-supported fluorination of soot bodies
US-9416044-B2 · Aug 16, 2016 · US
Method of manufacturing preforms for optical fibres having low water peak
US-9416045-B2 · Aug 16, 2016 · US
Low attenuation optical fiber
US-2016168008-A1 · Jun 16, 2016 · US
Low Loss Optical Fiber And Method Of Making The Same
US-2016170137-A1 · Jun 16, 2016 · US
Fiber bragg gratings in carbon-coated optical fibers and techniques for making same
US-9353001-B2 · May 31, 2016 · US
Broadband multi-mode optical fibers with flat-zone in dopant concentration profile
US-9329335-B2 · May 3, 2016 · US
Optical fiber preform and method of manufacturing optical fiber using optical fiber preform
US-9321670-B2 · Apr 26, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03B37/027?
- CPC C03B37/027 is the Cooperative Patent Classification code for “Fibres composed of different sorts of glass, {e.g. glass optical fibres}(C03B37/0253, C03B37/028 take precedence).”
- How many patents are filed under CPC C03B37/027 (Fibres composed of different sorts of glass, {e.g. glass optical fibres}(C03B37/0253, C03B37/028 take precedence))?
- Our database includes 284 publications tagged with this CPC code.
- Is patent activity under CPC C03B37/027 growing?
- Publication counts under this code: 18 in 2024 vs 27 in 2025 (latest complete years).