Substrate processing device, polishing device, and substrate processing method
US-12569891-B2 · Mar 10, 2026 · US
Corrugated pipes
Corrugated 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 | F16L9/06 |
| Official title | Corrugated pipes |
| Display label | Corrugated pipes |
| Total patents | 48 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 5 |
| 2019 | 1 |
| 2020 | 12 |
| 2021 | 6 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 6 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pipe with an outer wrap
US-2025189061-A1 · Jun 12, 2025 · US
Pipe with an outer wrap
US-12259084-B2 · Mar 25, 2025 · US
Universal coupling
US-2025035241-A1 · Jan 30, 2025 · US
Dielectric conduit assemblies and methods of making thereof
US-2025015320-A1 · Jan 9, 2025 · US
Universal coupling
US-12140252-B2 · Nov 12, 2024 · US
Dielectric conduit assemblies and methods of making thereof
US-12119521-B2 · Oct 15, 2024 · US
Universal coupling
US-2024280196-A1 · Aug 22, 2024 · US
Pipe with an outer wrap
US-2024159330-A1 · May 16, 2024 · US
Substrate processing device, polishing device, and substrate processing method
US-2024139782-A1 · May 2, 2024 · US
Pipe with an outer wrap
US-11898688-B2 · Feb 13, 2024 · US
Pipe with an outer wrap
US-2023138335-A1 · May 4, 2023 · US
Pipe with an outer wrap
US-11555561-B2 · Jan 17, 2023 · US
Conduits for transporting fluids and methods of fabricating the same
US-11512807-B2 · Nov 29, 2022 · US
Duct stringer with bulkhead
US-11465731-B2 · Oct 11, 2022 · US
Gas heat pump system
US-11460223-B2 · Oct 4, 2022 · US
Methods of fabricating conduits for transporting fluids
US-11428348-B2 · Aug 30, 2022 · US
Conduits for transporting fluids and methods of fabricating the same
US-2021270405-A1 · Sep 2, 2021 · US
Conduits for transporting fluids
US-11035515-B2 · Jun 15, 2021 · US
Conduits for transporting fluids and methods of fabricating the same
US-2021164592-A1 · Jun 3, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L9/06?
- CPC F16L9/06 is the Cooperative Patent Classification code for “Corrugated pipes.”
- How many patents are filed under CPC F16L9/06 (Corrugated pipes)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC F16L9/06 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).