Corrosion treatment for pipes
US-2025369553-A1 · Dec 4, 2025 · US
by means of internal or external coatings
by means of internal or external coatings · 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 | F16L58/02 |
| Official title | by means of internal or external coatings |
| Display label | by means of internal or external coatings |
| Total patents | 60 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 9 |
| 2021 | 4 |
| 2022 | 7 |
| 2023 | 4 |
| 2024 | 7 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Depositing coatings on and within a housing, apparatus, or tool using a coating system positioned therein
US-12378663-B2 · Aug 5, 2025 · US
Stainless steel pipe and method for manufacturing same
US-12359752-B2 · Jul 15, 2025 · US
Pipe with an outer wrap
US-2025189061-A1 · Jun 12, 2025 · US
Pipe with an outer wrap
US-12259084-B2 · Mar 25, 2025 · US
System for protecting coated pipes for on-land and subsea pipelines and the method for protecting pipes
US-12203583-B2 · Jan 21, 2025 · US
Reinforced thermoplastic multilayer hose for high temperature and pressure transport of fluids
US-2024426403-A1 · Dec 26, 2024 · US
Substrate processing apparatus, method of manufacturing semiconductor device, and recording medium
US-2024360552-A1 · Oct 31, 2024 · US
System for protecting coated pipes for on-land and subsea pipelines and the method for protecting pipes
US-12055262-B2 · Aug 6, 2024 · US
System for protecting coated pipes for on-land and subsea pipelines and the method for protecting pipes
US-2024175536-A1 · May 30, 2024 · US
Pipe with an outer wrap
US-2024159330-A1 · May 16, 2024 · US
Pipe with an outer wrap
US-11898688-B2 · Feb 13, 2024 · US
Fluid conduits with selectively coated surfaces
US-11859757-B2 · Jan 2, 2024 · US
Pipe with an outer wrap
US-2023138335-A1 · May 4, 2023 · US
Stainless steel pipe and method for manufacturing same
US-2023097339-A1 · Mar 30, 2023 · US
Anti-corrosion super-slippery aluminum capillary tube and method and device for preparing the same
US-2023081397-A1 · Mar 16, 2023 · US
Pipe with an outer wrap
US-11555561-B2 · Jan 17, 2023 · US
Fuel tank fill assembly
US-11440789-B2 · Sep 13, 2022 · US
Depositing Coatings On and Within A Housing, Apparatus, or Tool Using a Coating System Positioned Therein
US-2022282375-A1 · Sep 8, 2022 · US
A system for protecting coated pipes for on-land and subsea pipelines and the method for protecting pipes
US-2022252203-A1 · Aug 11, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L58/02?
- CPC F16L58/02 is the Cooperative Patent Classification code for “by means of internal or external coatings.”
- How many patents are filed under CPC F16L58/02 (by means of internal or external coatings)?
- Our database includes 60 publications tagged with this CPC code.
- Is patent activity under CPC F16L58/02 growing?
- Publication counts under this code: 7 in 2024 vs 6 in 2025 (latest complete years).