Antifreeze concentrate with corrosion protection and aqueous coolant composition produced therefrom
US-2025346794-A1 · Nov 13, 2025 · US
Heterocyclic compounds containing sulfur as hetero atom
Heterocyclic compounds containing sulfur as hetero atom · 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 | C23F11/165 |
| Official title | {Heterocyclic compounds containing sulfur as hetero atom} |
| Display label | Heterocyclic compounds containing sulfur as hetero atom |
| Total patents | 70 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 9 |
| 2021 | 9 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 10 |
| 2025 | 11 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Corrossion inhibitor compositions
US-2025327191-A1 · Oct 23, 2025 · US
Compositions for inhibiting corrosion
US-12441894-B2 · Oct 14, 2025 · US
Solid coolant concentrates and production thereof
US-12180413-B2 · Dec 31, 2024 · US
Solid coolant concentrates and production thereof
US-2024409801-A1 · Dec 12, 2024 · US
Aqueous formulation of oil-soluble corrosion inhibitor, and preparation method and regeneration method thereof
US-2024368468-A1 · Nov 7, 2024 · US
Heteroaryl-thio-substituted pyrones
US-2024327707-A1 · Oct 3, 2024 · US
Novel coolant with low electrical conductivity
US-2024309257-A1 · Sep 19, 2024 · US
Heteroaryl-thio-substituted pyrones
US-12091602-B2 · Sep 17, 2024 · US
Compositions for inhibiting corrosion
US-2024287319-A1 · Aug 29, 2024 · US
Oil and gas field corrosion inhibitor compositions
US-12043794-B2 · Jul 23, 2024 · US
Compositions for inhibiting corrosion
US-11987726-B2 · May 21, 2024 · US
Corrosion inhibitor composition for use in the oil and gas industry
US-2024110096-A1 · Apr 4, 2024 · US
Oil soluble molybdenum complexes for inhibiting high temperature corrosion and related applications in petroleum refineries
US-11767596-B2 · Sep 26, 2023 · US
Compositions for inhibiting corrosion
US-2023159765-A1 · May 25, 2023 · US
Compositions for inhibiting corrosion
US-11560483-B2 · Jan 24, 2023 · US
Anti-corrosion formulations with storage stability
US-11555141-B2 · Jan 17, 2023 · US
Compositions and coatings with non-chrome corrosion inhibitor particles
US-11459466-B2 · Oct 4, 2022 · US
Compositions and coatings with non-chrome corrosion inhibitor particles
US-2022267610-A9 · Aug 25, 2022 · US
Compositions and coatings with non-chrome corrosion inhibitor particles
US-2022251397-A1 · Aug 11, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23F11/165?
- CPC C23F11/165 is the Cooperative Patent Classification code for “Heterocyclic compounds containing sulfur as hetero atom.”
- How many patents are filed under CPC C23F11/165 (Heterocyclic compounds containing sulfur as hetero atom)?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC C23F11/165 growing?
- Publication counts under this code: 10 in 2024 vs 11 in 2025 (latest complete years).