Anti-resonance element preform for producing an anti-resonant hollow-core fiber
US-12577143-B2 · Mar 17, 2026 · US
Uniting glass rods, glass tubes, or hollow glassware (C03B23/24 takes precedence)
Uniting glass rods, glass tubes, or hollow glassware (C03B23/24 takes 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 | C03B23/207 |
| Official title | Uniting glass rods, glass tubes, or hollow glassware (C03B23/24 takes precedence) |
| Display label | Uniting glass rods, glass tubes, or hollow glassware (C03B23/24 takes precedence) |
| Total patents | 54 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 3 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 7 |
| 2024 | 9 |
| 2025 | 10 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of manufacturing optical fiber preform
US-2026008713-A1 · Jan 8, 2026 · US
Porous structure such as for filters, and making the same
US-2026001016-A1 · Jan 1, 2026 · US
Light weight substrate with glass bubble skeleton having mixed porosity for carbon capture and method of making
US-2025382218-A1 · Dec 18, 2025 · US
Multi-core optical fiber preform, multi-core optical fiber preform production method, and multi-core optical fiber production method
US-12459853-B2 · Nov 4, 2025 · US
Method of producing photonic crystal fibers
US-2025313504-A1 · Oct 9, 2025 · US
Method for producing a preform of an anti-resonant hollow-core fiber
US-12428332-B2 · Sep 30, 2025 · US
Glass articles made from laminated glass tubing and systems and methods for converting laminated glass tubing into the glass articles
US-2025296866-A1 · Sep 25, 2025 · US
Apparatus for the automated production of glass assemblies and corresponding method
US-12365615-B2 · Jul 22, 2025 · US
Glass articles made from laminated glass tubing and systems and methods for converting laminated glass tubing into the glass articles
US-12344544-B2 · Jul 1, 2025 · US
Glass substrate, method of manufacturing glass substrate, and method of manufacturing glass element using glass substrate
US-12319607-B2 · Jun 3, 2025 · US
Optical fiber preform
US-2025162925-A1 · May 22, 2025 · US
Anti-resonant hollow core optical fiber and methods of making
US-12298554-B2 · May 13, 2025 · US
Alkali doped mulitcore optical fiber with reduced devitrification
US-2024254034-A1 · Aug 1, 2024 · US
Producing holes in glass containers
US-12030206-B2 · Jul 9, 2024 · US
Method for fabricating an optical fibre preform
US-2024190754-A1 · Jun 13, 2024 · US
Method for fabricating an optical fibre preform
US-11964899-B2 · Apr 23, 2024 · US
High temperature sealant and methods thereof
US-11945749-B2 · Apr 2, 2024 · US
Optical fiber preform production method, optical fiber preform, and optical fiber production method
US-2024051865-A1 · Feb 15, 2024 · US
Anti-resonance element preform for producing an anti-resonant hollow-core fiber
US-2024043312-A1 · Feb 8, 2024 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03B23/207?
- CPC C03B23/207 is the Cooperative Patent Classification code for “Uniting glass rods, glass tubes, or hollow glassware (C03B23/24 takes precedence).”
- How many patents are filed under CPC C03B23/207 (Uniting glass rods, glass tubes, or hollow glassware (C03B23/24 takes precedence))?
- Our database includes 54 publications tagged with this CPC code.
- Is patent activity under CPC C03B23/207 growing?
- Publication counts under this code: 9 in 2024 vs 10 in 2025 (latest complete years).