Manufacturing method of optical fiber
US-2019359520-A1 · Nov 28, 2019 · US
from reheated softened tubes, rods, fibres or filaments {, e.g. drawing fibres from preforms (draw-down of tubes, rods or preforms to reduced diameter preforms C03B37/0124)}
from reheated softened tubes, rods, fibres or filaments {, e.g. drawing fibres from preforms (draw-down of tubes, rods or preforms to reduced diameter preforms C03B37/0124)} · 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 | C03B37/025 |
| Official title | from reheated softened tubes, rods, fibres or filaments {, e.g. drawing fibres from preforms (draw-down of tubes, rods or preforms to reduced diameter preforms C03B37/0124)} |
| Display label | from reheated softened tubes, rods, fibres or filaments {, e.g. drawing fibres from preforms (draw-down of tubes, rods or preforms to reduced diameter preforms C03B37/0124)} |
| Total patents | 127 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 15 |
| 2017 | 14 |
| 2018 | 20 |
| 2019 | 16 |
| 2020 | 15 |
| 2021 | 7 |
| 2022 | 13 |
| 2023 | 11 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optical fiber coating die assembly having inlet tube
US-2019322578-A1 · Oct 24, 2019 · US
Light-diffusing optical elements having cladding with scattering centers
US-2019310415-A1 · Oct 10, 2019 · US
Optical fibers for simultaneous measurement of temperature and strain
US-10401563-B2 · Sep 3, 2019 · US
Fiber coating compositions with high cure speed
US-2019249034-A1 · Aug 15, 2019 · US
Low attenuation optical fiber
US-10322963-B2 · Jun 18, 2019 · US
Optical fibers having a varying clad index and methods of forming same
US-10146008-B2 · Dec 4, 2018 · US
Method of manufacturing optical fiber, optical fiber manufacturing apparatus, and control apparatus therefor
US-2018305239-A1 · Oct 25, 2018 · US
Apparatus and method for cooling a glass strand produced by means of tube drawing
US-2018305238-A1 · Oct 25, 2018 · US
Method for fabricating pixelated scintillators
US-2018292547-A1 · Oct 11, 2018 · US
Production method for multicore optical fiber
US-2018244556-A1 · Aug 30, 2018 · US
Process for fabrication of ytterbium doped optical fiber
US-10040714-B2 · Aug 7, 2018 · US
Led curing of high modulus fiber coating
US-2018215661-A1 · Aug 2, 2018 · US
Method of manufacturing optical fiber, optical fiber manufacturing apparatus, and control apparatus therefor
US-10023490-B2 · Jul 17, 2018 · US
Optical fiber production method
US-2018186682-A1 · Jul 5, 2018 · US
Method for etching a primary preform
US-9994480-B2 · Jun 12, 2018 · US
Sealing material and sealing method using the same
US-9985240-B2 · May 29, 2018 · US
Light-diffusing optical elements having cladding with scattering centers
US-2018113254-A1 · Apr 26, 2018 · US
Purge device for an optical fiber draw system
US-2018111871-A1 · Apr 26, 2018 · US
Control device and manufacturing apparatus of optical fiber
US-2018099893-A1 · Apr 12, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03B37/025?
- CPC C03B37/025 is the Cooperative Patent Classification code for “from reheated softened tubes, rods, fibres or filaments {, e.g. drawing fibres from preforms (draw-down of tubes, rods or preforms to reduced diameter preforms C03B37/0124)}.”
- How many patents are filed under CPC C03B37/025 (from reheated softened tubes, rods, fibres or filaments {, e.g. drawing fibres from preforms (draw-down of tubes, rods or preforms to reduced diameter preforms C03B37/0124)})?
- Our database includes 127 publications tagged with this CPC code.
- Is patent activity under CPC C03B37/025 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).