Corrosion inhibitor compositions and methods of using the compositions to inhibit corrosion
US-2024376608-A1 · Nov 14, 2024 · US
in markedly acid liquids
in markedly acid liquids · 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 | C23F11/04 |
| Official title | in markedly acid liquids |
| Display label | in markedly acid liquids |
| Total patents | 318 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 18 |
| 2017 | 35 |
| 2018 | 24 |
| 2019 | 28 |
| 2020 | 38 |
| 2021 | 27 |
| 2022 | 38 |
| 2023 | 34 |
| 2024 | 37 |
| 2025 | 18 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Acid corrosion inhibitors
US-11981861-B2 · May 14, 2024 · US
Corrosion Inhibitor COMPOSITIONS and MethodS of Using Same
US-2017327728-A1 · Nov 16, 2017 · US
Synthetic acid compositions alternatives to conventional acids in the oil and gas industry
US-2017306503-A1 · Oct 26, 2017 · US
Methods and systems for suppressing corrosion of sensitive metal surfaces
US-2017298265-A1 · Oct 19, 2017 · US
Synthetic Acid Compositions Alternatives to Conventional Acids in the Oil and Gas Industry
US-2017292066-A1 · Oct 12, 2017 · US
Synthetic Acid Compositions Alternatives to Conventional Acids in the Oil and Gas Industry
US-2017275522-A1 · Sep 28, 2017 · US
Compositions for corrosion inhibition
US-9771657-B2 · Sep 26, 2017 · US
Mild steel corrosion inhibitor compounds
US-9758878-B2 · Sep 12, 2017 · US
Corrosion inhibiting compositions to mitigate corrosion in environments containing elemental sulfur and/or polysulfides
US-2017247798-A1 · Aug 31, 2017 · US
Corrosion inhibition
US-2017240796-A1 · Aug 24, 2017 · US
Methods and systems for suppressing corrosion of steel surfaces
US-2017240797-A1 · Aug 24, 2017 · US
Methods and systems for suppressing corrosion of metal surfaces
US-2017240798-A1 · Aug 24, 2017 · US
Environmentally friendly corrosion inhibitors for high temperature applications
US-2017233872-A1 · Aug 17, 2017 · US
Corrosion inhibition
US-2017234475-A1 · Aug 17, 2017 · US
Alkenyl succinic acids or anhydrides as corrosion inhibitors for metal surfaces
US-9732429-B2 · Aug 15, 2017 · US
Compositions for corrosion inhibition
US-2017218523-A1 · Aug 3, 2017 · US
Synthetic acid compositions alternatives to conventional acids for use in the oil and gas industry
US-2017210980-A1 · Jul 27, 2017 · US
Aluminum alloy material and joined body having exceptional adhesive endurance, and automotive component
US-2017175238-A1 · Jun 22, 2017 · US
Method of using sophorolipids or mannosylerythritol lipids as acid corrosion inhibitors in well treatment operations
US-9683164-B2 · Jun 20, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23F11/04?
- CPC C23F11/04 is the Cooperative Patent Classification code for “in markedly acid liquids.”
- How many patents are filed under CPC C23F11/04 (in markedly acid liquids)?
- Our database includes 318 publications tagged with this CPC code.
- Is patent activity under CPC C23F11/04 growing?
- Publication counts under this code: 37 in 2024 vs 18 in 2025 (latest complete years).