Apparatus for drying and/or consolidating a preform for optical fibres
US-2023382781-A1 · Nov 30, 2023 · US
Furnaces therefor, e.g. muffle tubes, furnace linings
Furnaces therefor, e.g. muffle tubes, furnace linings · 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 | C03B37/0146 |
| Official title | {Furnaces therefor, e.g. muffle tubes, furnace linings} |
| Display label | Furnaces therefor, e.g. muffle tubes, furnace linings |
| Total patents | 81 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 13 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 9 |
| 2021 | 5 |
| 2022 | 10 |
| 2023 | 8 |
| 2024 | 8 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing optical fiber glass preform
US-2023023064-A1 · Jan 26, 2023 · US
Apparatuses and methods for processing optical fiber preforms
US-11554981-B2 · Jan 17, 2023 · US
Glass body manufacturing apparatus, glass body manufacturing method, soot conveying mechanism, and soot heating mechanism
US-11548806-B2 · Jan 10, 2023 · US
System and method for positioning an optical preform in a furnace
US-11513293-B2 · Nov 29, 2022 · US
Device, system, and method for forming a core-rod for optical fibers
US-11407670-B2 · Aug 9, 2022 · US
Elongating method and elongating apparatus for glass base material
US-2022242772-A1 · Aug 4, 2022 · US
Sintering method of porous glass base material for optical fiber
US-2022234935-A1 · Jul 28, 2022 · US
Method and apparatus for drying and consolidating a preform for optical fibres
US-11325854-B2 · May 10, 2022 · US
Method of fabricating optical fiber glass base material, and apparatus for fabricating optical fiber glass base material
US-2022119299-A1 · Apr 21, 2022 · US
Manufacturing method of glass base material for optical fiber
US-2022081345-A1 · Mar 17, 2022 · US
Heating apparatus and method for manufacturing optical fiber base material
US-2022073405-A1 · Mar 10, 2022 · US
Method of sintering optical fiber porous glass base material
US-11225431-B2 · Jan 18, 2022 · US
Optical fiber preform
US-2022009816-A1 · Jan 13, 2022 · US
Method for manufacturing a glass preform for optical fibers
US-11186515-B2 · Nov 30, 2021 · US
System and method for nitrogen doping of a glass article
US-2021347690-A1 · Nov 11, 2021 · US
Neutralizing gas system for furnace
US-11072560-B2 · Jul 27, 2021 · US
Apparatuses and methods for processing an optical fiber preform
US-2021179478-A1 · Jun 17, 2021 · US
Manufacturing method for glass particulate deposit and burner
US-2021061701-A1 · Mar 4, 2021 · US
Apparatuses and methods for processing optical fiber preforms
US-2020392034-A1 · Dec 17, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03B37/0146?
- CPC C03B37/0146 is the Cooperative Patent Classification code for “Furnaces therefor, e.g. muffle tubes, furnace linings.”
- How many patents are filed under CPC C03B37/0146 (Furnaces therefor, e.g. muffle tubes, furnace linings)?
- Our database includes 81 publications tagged with this CPC code.
- Is patent activity under CPC C03B37/0146 growing?
- Publication counts under this code: 8 in 2024 vs 6 in 2025 (latest complete years).