Negative electrode comprising a protective layer for a lithium secondary battery, method for manufacturing same, and lithium secondary battery including same
US-12107259-B2 · Oct 1, 2024 · US
Alkaline compositions (C23F1/42 takes precedence)
Alkaline compositions (C23F1/42 takes precedence) · 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 | C23F1/32 |
| Official title | Alkaline compositions (C23F1/42 takes precedence) |
| Display label | Alkaline compositions (C23F1/42 takes precedence) |
| Total patents | 69 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 7 |
| 2019 | 3 |
| 2020 | 7 |
| 2021 | 9 |
| 2022 | 9 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Atomic layer etching
US-12040195-B2 · Jul 16, 2024 · US
Fluorinated polymers for corrosion protection of metal
US-12023710-B2 · Jul 2, 2024 · US
Hafnium oxide corrosion inhibitor
US-11946148-B2 · Apr 2, 2024 · US
Substrate processing liquid for etching a metal layer, substrate processing method and substrate processing apparatus
US-11908938-B2 · Feb 20, 2024 · US
Treatment methods and solutions for improving adhesion of gold electroplating on metal surfaces
US-11898264-B2 · Feb 13, 2024 · US
Chemical liquid and method for treating object to be treated
US-11859119-B2 · Jan 2, 2024 · US
Atomic layer etching
US-2023268187-A1 · Aug 24, 2023 · US
Low-dielectric resin composition, low-dielectric resin/metal composite material and preparation method thereof, and electronic equipment
US-11649355-B2 · May 16, 2023 · US
Atomic layer etching
US-11574813-B2 · Feb 7, 2023 · US
Method of selectively etching a metal component
US-2023008150-A1 · Jan 12, 2023 · US
Chemical solution and method for treating substrate
US-11505743-B2 · Nov 22, 2022 · US
Treatment liquid for semiconductor wafers
US-2022298416-A1 · Sep 22, 2022 · US
Method of finishing a metallic surface
US-2022298647-A1 · Sep 22, 2022 · US
Method for removing metal compound
US-2022243128-A1 · Aug 4, 2022 · US
Treatment Methods And Solutions For Improving Adhesion Of Gold Electroplating On Metal Surfaces
US-2022090284-A1 · Mar 24, 2022 · US
Hafnium Oxide Corrosion Inhibitor
US-2022064803-A1 · Mar 3, 2022 · US
Silicon Etching Liquid
US-2022041931-A1 · Feb 10, 2022 · US
Method allowing the removal of oxides present on the surface of nodules of a metal powder before using same in an industrial method
US-11219948-B2 · Jan 11, 2022 · US
Chemical liquid and method for treating object to be treated
US-2022002622-A1 · Jan 6, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23F1/32?
- CPC C23F1/32 is the Cooperative Patent Classification code for “Alkaline compositions (C23F1/42 takes precedence).”
- How many patents are filed under CPC C23F1/32 (Alkaline compositions (C23F1/42 takes precedence))?
- Our database includes 69 publications tagged with this CPC code.
- Is patent activity under CPC C23F1/32 growing?
- Publication counts under this code: 8 in 2024 vs 7 in 2025 (latest complete years).