Biosensor for single cell analysis
US-2017350876-A1 · Dec 7, 2017 · US
Cleaning or etching treatments
Cleaning or etching treatments · 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 | C23C14/021 |
| Official title | {Cleaning or etching treatments} |
| Display label | Cleaning or etching treatments |
| Total patents | 414 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 24 |
| 2017 | 25 |
| 2018 | 40 |
| 2019 | 32 |
| 2020 | 34 |
| 2021 | 35 |
| 2022 | 48 |
| 2023 | 33 |
| 2024 | 64 |
| 2025 | 54 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Transparent vapor-deposited film
US-9822440-B2 · Nov 21, 2017 · US
Solar selective coating having high thermal stability and a process for the preparation thereof
US-9803891-B2 · Oct 31, 2017 · US
Fabrication of low defectivity electrochromic devices
US-2017299933-A1 · Oct 19, 2017 · US
Nuclear fuel claddings, production method thereof and uses of same against oxidation/hydriding
US-2017287578-A1 · Oct 5, 2017 · US
Tunnel valve read sensor with crystalline alumina tunnel barrier deposited using room temperature techniques
US-9747930-B2 · Aug 29, 2017 · US
Coated article including metal island layer(s) formed using stoichiometry control, and/or method of making the same
US-2017241009-A1 · Aug 24, 2017 · US
Display apparatus having pixels areas with different thicknesses and apparatus and method of manufacturing the display apparatus
US-2017207283-A1 · Jul 20, 2017 · US
Integrated transformer
US-9704647-B2 · Jul 11, 2017 · US
Tunnel valve read sensor with crystalline alumina tunnel barrier deposited using room temperature techniques
US-2017162217-A1 · Jun 8, 2017 · US
Thin-film piezoelectric material substrate, thin-film piezoelectric material element, head gimbal assembly, ink jet head and method of manufacturing the thin-film piezoelectric material element
US-2017162779-A1 · Jun 8, 2017 · US
Graphic formation via material ablation
US-9661770-B2 · May 23, 2017 · US
Pitting resistant carbon coating
US-2017137926-A1 · May 18, 2017 · US
Razor blade
US-2017136641-A1 · May 18, 2017 · US
Display apparatus having pixels areas with different thicknesses
US-9653527-B2 · May 16, 2017 · US
Optical sensor for analyte detection
US-2017122939-A1 · May 4, 2017 · US
Process for coating discrete articles with a zinc-based alloyed layer and articles obtained therefrom
US-9623632-B2 · Apr 18, 2017 · US
Direct liquid deposition
US-9593407-B2 · Mar 14, 2017 · US
Particle removal during fabrication of electrochromic devices
US-2017038658-A1 · Feb 9, 2017 · US
Method of cleaning bottom of via hole and method of manufacturing semiconductor device
US-2017025308-A1 · Jan 26, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C14/021?
- CPC C23C14/021 is the Cooperative Patent Classification code for “Cleaning or etching treatments.”
- How many patents are filed under CPC C23C14/021 (Cleaning or etching treatments)?
- Our database includes 414 publications tagged with this CPC code.
- Is patent activity under CPC C23C14/021 growing?
- Publication counts under this code: 64 in 2024 vs 54 in 2025 (latest complete years).