Electrolytic coating for aluminum components with weld joints
US-12595873-B2 · Apr 7, 2026 · US
Tubes; Rings; Hollow bodies
Tubes; Rings; Hollow bodies · 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 | C25D13/14 |
| Official title | Tubes; Rings; Hollow bodies |
| Display label | Tubes; Rings; Hollow bodies |
| Total patents | 55 |
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 | 9 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 2 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Casing structure of electronic device and manufacturing method thereof
US-12584234-B2 · Mar 24, 2026 · US
Automotive crashworthiness energy absorption part, and method for manufacturing automotive crashworthiness energy absorption part
US-12571122-B2 · Mar 10, 2026 · US
Fiber reinforced composite and method of making
US-12351530-B2 · Jul 8, 2025 · US
Method for manufacturing heat conduction structure
US-2025205780-A1 · Jun 26, 2025 · US
Method for forming a cathodic protection coating on a turbomachine part
US-12168836-B2 · Dec 17, 2024 · US
Electrolytic coating for aluminum components with weld joints
US-2024353050-A1 · Oct 24, 2024 · US
Method for introducing a media outlet into a hollow profiled section and method for providing a hollow profiled section
US-12116042-B2 · Oct 15, 2024 · US
Method for forming a cathodic protection coating on a turbomachine part
US-2024328025-A1 · Oct 3, 2024 · US
Coatings for galvanic corrosion mitigation
US-2024276660-A1 · Aug 15, 2024 · US
Structural battery pack adhesive coating stackup
US-2024234909-A1 · Jul 11, 2024 · US
Insulation film-provided flat conductive plate and method for manufacturing same
US-2024101835-A1 · Mar 28, 2024 · US
Casing structure of electronic device and manufacturing method thereof
US-2024068119-A1 · Feb 29, 2024 · US
Automotive crashworthiness energy absorption part, and method for manufacturing automotive crashworthiness energy absorption part
US-2023257899-A1 · Aug 17, 2023 · US
Electrodeposition coating method and electrodeposition coating apparatus
US-11692280-B2 · Jul 4, 2023 · US
Process for electroplating an aqueous adhesive composition comprising a phosphate salt and a thermosetting resin on a conductive element
US-11624122-B2 · Apr 11, 2023 · US
Method for Introducing a Media Outlet Into a Hollow Profiled Section and Method for Providing a Hollow Profiled Section
US-2023026573-A1 · Jan 26, 2023 · US
Method for producing a thermal barrier on a part of a turbomachine
US-11479873-B2 · Oct 25, 2022 · US
Water-Based Anti-Corrosion Cutting Fluid for Electronic Device Housings
US-2022119971-A1 · Apr 21, 2022 · US
Treated particles and substrates
US-2022049358-A1 · Feb 17, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25D13/14?
- CPC C25D13/14 is the Cooperative Patent Classification code for “Tubes; Rings; Hollow bodies.”
- How many patents are filed under CPC C25D13/14 (Tubes; Rings; Hollow bodies)?
- Our database includes 55 publications tagged with this CPC code.
- Is patent activity under CPC C25D13/14 growing?
- Publication counts under this code: 8 in 2024 vs 2 in 2025 (latest complete years).