Electrode watering assemblies and methods for maintaining cathodic monitoring of structures
US-2023407488-A1 · Dec 21, 2023 · US
Pipes
Pipes · 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 | C23F2213/32 |
| Official title | Pipes |
| Display label | Pipes |
| Total patents | 89 |
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 | 5 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 10 |
| 2021 | 10 |
| 2022 | 9 |
| 2023 | 17 |
| 2024 | 12 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Mounting and cathodic protection
US-2023323984-A1 · Oct 12, 2023 · US
Mounting and cathodic protection
US-11739865-B2 · Aug 29, 2023 · US
Reducing the risk of corrosion in pipelines
US-11655929-B2 · May 23, 2023 · US
Pipe body cathodic protection
US-11592125-B2 · Feb 28, 2023 · US
Corrosion protection system for heating ventalation air conditioning refrigeration
US-11591697-B2 · Feb 28, 2023 · US
Corrosion resistance tester for coated metal material
US-11566996-B2 · Jan 31, 2023 · US
Provision of electrical continuity and/or radial support
US-11499654-B2 · Nov 15, 2022 · US
System and method for analyzing cathodic protection current shielding of a coating
US-11467083-B2 · Oct 11, 2022 · US
Use of focused accelerated corrosion for metal decommissioning
US-2022316072-A1 · Oct 6, 2022 · US
Assemblies and methods for monitoring cathodic protection of structures
US-11447877-B1 · Sep 20, 2022 · US
Heat exchanger and household appliance
US-11435149-B2 · Sep 6, 2022 · US
Connecting and cathodic protection
US-11320068-B2 · May 3, 2022 · US
Clamp for pipe
US-11268647-B2 · Mar 8, 2022 · US
Assessment of external coating degradation severity for buried pipelines
US-2022065406-A1 · Mar 3, 2022 · US
Flat extruded aluminum multi-port tube whose inner surface is highly corrosion-resistant and an aluminum heat exchanger using the tube
US-11255618-B2 · Feb 22, 2022 · US
Systems and methods for monitoring integrated passive anodes
US-2021340679-A1 · Nov 4, 2021 · US
Apparatus for tank bottom soil side corrosion monitoring
US-11162887-B2 · Nov 2, 2021 · US
System, method and apparatus for providing anodic corrosion protection for galvanized irrigation pipes
US-2021269925-A1 · Sep 2, 2021 · US
Pipe body cathodic protection
US-2021262592-A1 · Aug 26, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23F2213/32?
- CPC C23F2213/32 is the Cooperative Patent Classification code for “Pipes.”
- How many patents are filed under CPC C23F2213/32 (Pipes)?
- Our database includes 89 publications tagged with this CPC code.
- Is patent activity under CPC C23F2213/32 growing?
- Publication counts under this code: 12 in 2024 vs 6 in 2025 (latest complete years).