Ultra-high purity polycarbonates having good inherent color and thermal resistance and a device and a method for producing the same
US-9828464-B2 · Nov 28, 2017 · US
Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B29C48/13 |
| Official title | Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes |
| Display label | Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes |
| Total patents | 216 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 19 |
| 2017 | 26 |
| 2018 | 28 |
| 2019 | 21 |
| 2020 | 27 |
| 2021 | 26 |
| 2022 | 14 |
| 2023 | 10 |
| 2024 | 11 |
| 2025 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Variable Width Deposition for Additive Manufacturing with Orientable Nozzle
US-2017320267-A1 · Nov 9, 2017 · US
Device and method for forming sheet-like rubber
US-2017320282-A1 · Nov 9, 2017 · US
Conduit and method of forming
US-2017291005-A1 · Oct 12, 2017 · US
Method for producing an electrical line, tool mould for such a method, and line
US-2017282464-A1 · Oct 5, 2017 · US
Device and method for forming sheet-like rubber
US-9751269-B2 · Sep 5, 2017 · US
Variable extrusion die apparatus
US-9744709-B2 · Aug 29, 2017 · US
Mono- and multi-layer blown films
US-9732198-B2 · Aug 15, 2017 · US
Extrudable Oriented Polymer Composites
US-2017217071-A1 · Aug 3, 2017 · US
Conduit and method of forming
US-9717874-B2 · Aug 1, 2017 · US
Electric wire protective tube
US-9692216-B2 · Jun 27, 2017 · US
Longitudinally pleated products
US-2017165937-A1 · Jun 15, 2017 · US
Pin cam deflector nut
US-2017157830-A1 · Jun 8, 2017 · US
Extrudable oriented polymer composites
US-9656437-B2 · May 23, 2017 · US
Sheath flow methods
US-9649803-B2 · May 16, 2017 · US
Forming longitudinally pleated products
US-9649792-B2 · May 16, 2017 · US
Mono- and Multi-Layer Blown Films
US-2017081486-A1 · Mar 23, 2017 · US
Filtration medium including polymeric netting of ribbons and strands
US-2017065923-A1 · Mar 9, 2017 · US
Polymeric netting of ribbons and strands and methods of making the same
US-2017066210-A1 · Mar 9, 2017 · US
Composite polymeric layers and methods of making the same
US-2016368237-A1 · Dec 22, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C48/13?
- CPC B29C48/13 is the Cooperative Patent Classification code for “Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes.”
- How many patents are filed under CPC B29C48/13 (Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes)?
- Our database includes 216 publications tagged with this CPC code.
- Is patent activity under CPC B29C48/13 growing?
- Publication counts under this code: 11 in 2024 vs 12 in 2025 (latest complete years).