Fibre reinforced polymer composite pipes
US-11761562-B2 · Sep 19, 2023 · US
Reinforced pipes
Reinforced pipes · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16L9/128 |
| Official title | Reinforced pipes |
| Display label | Reinforced pipes |
| Total patents | 75 |
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 | 6 |
| 2017 | 6 |
| 2018 | 5 |
| 2019 | 13 |
| 2020 | 8 |
| 2021 | 10 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 8 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pipe with an outer wrap
US-2023138335-A1 · May 4, 2023 · US
Pipe with an outer wrap
US-11555561-B2 · Jan 17, 2023 · US
Method for producing a tubular body with reduced internal stress by using 3D printing, and a tubular body with reduced internal stress
US-11491701-B2 · Nov 8, 2022 · US
Tubular with screw thread
US-2022307639-A1 · Sep 29, 2022 · US
Fluid pipe for a heating and air conditioning unit
US-2022105780-A1 · Apr 7, 2022 · US
Thermoplastic composite pipe with multilayer intermediate lamina
US-2022003338-A1 · Jan 6, 2022 · US
In-situ curing oven for additive manufacturing system
US-2021379827-A1 · Dec 9, 2021 · US
Thermoplastic composite pipe with multilayer intermediate lamina
US-11149879-B2 · Oct 19, 2021 · US
In-situ curing oven for additive manufacturing system
US-11135769-B2 · Oct 5, 2021 · US
Print head and method for printing composite structure and temporary support
US-11130285-B2 · Sep 28, 2021 · US
Center pivot irrigation gooseneck with varying cross-sectional diameters
US-11085568-B2 · Aug 10, 2021 · US
Print head for additively manufacturing composite tubes
US-11052602-B2 · Jul 6, 2021 · US
Pipe with an outer wrap
US-2021140566-A1 · May 13, 2021 · US
Fluid conduit and method
US-10941884-B2 · Mar 9, 2021 · US
Pipe with an outer wrap
US-10927981-B2 · Feb 23, 2021 · US
Print head for additive manufacturing system
US-10906240-B2 · Feb 2, 2021 · US
Thermoplastic composite pipe with multilayer intermediate lamina
US-10816113-B2 · Oct 27, 2020 · US
Fiber-reinforced member and method for manufacturing same
US-10730246-B2 · Aug 4, 2020 · US
Composite fuel pipes
US-10676610-B2 · Jun 9, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L9/128?
- CPC F16L9/128 is the Cooperative Patent Classification code for “Reinforced pipes.”
- How many patents are filed under CPC F16L9/128 (Reinforced pipes)?
- Our database includes 75 publications tagged with this CPC code.
- Is patent activity under CPC F16L9/128 growing?
- Publication counts under this code: 8 in 2024 vs 7 in 2025 (latest complete years).