Compositions for electrolyte fuel cells and other electrochemical conversion devices
US-2021309845-A1 · Oct 7, 2021 · US
modified by chemical after-treatment
modified by chemical after-treatment · 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 | C09D127/22 |
| Official title | modified by chemical after-treatment |
| Display label | modified by chemical after-treatment |
| Total patents | 98 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 9 |
| 2017 | 10 |
| 2018 | 7 |
| 2019 | 6 |
| 2020 | 18 |
| 2021 | 9 |
| 2022 | 13 |
| 2023 | 6 |
| 2024 | 10 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Composition and coating film
US-2021292591-A1 · Sep 23, 2021 · US
Current collector for electrical storage device, method for producing the same, and coating liquid used in said production method
US-11018344-B2 · May 25, 2021 · US
Method for thermal treatment of a surface coating on a metal part by microwaves
US-10882071-B2 · Jan 5, 2021 · US
Current collector for electrical storage device, method for producing the same, and coating liquid used in said production method
US-2020403246-A1 · Dec 24, 2020 · US
Surface treatment agent
US-10870729-B2 · Dec 22, 2020 · US
3d hybrid composite coating
US-2020347262-A1 · Nov 5, 2020 · US
Perchloroethylene derivative and use thereof
US-2020332105-A1 · Oct 22, 2020 · US
Low stress moisture resistant structure of semiconductor device
US-10804176-B2 · Oct 13, 2020 · US
Fluorinated copolymer and compositions and articles including the same
US-2020303755-A1 · Sep 24, 2020 · US
Fluorinated copolymer having sulfonyl pendant groups and compositions and articles including the same
US-2020277420-A1 · Sep 3, 2020 · US
Low stress moisture resistant structure of semiconductor device
US-2020273764-A1 · Aug 27, 2020 · US
Functionalised fluorinated copolymers
US-10730979-B2 · Aug 4, 2020 · US
Fluoropolymer dispersion, method for making the fluoropolymer dispersion, catalyst ink and polymer electrolyte membrane
US-2020199259-A1 · Jun 25, 2020 · US
Fluoropolymer film
US-10662307-B2 · May 26, 2020 · US
Crosslinkable electroactive fluorinated polymers
US-2020157334-A1 · May 21, 2020 · US
Water-borne precursors for forming heterophasic anti-fouling, polymeric coatings having a fluorinated continuous phase with non-fluorinated domains
US-2020148896-A1 · May 14, 2020 · US
Carbon black composition for manufacturing particulate magnetic recording medium and method of manufacturing particulate magnetic recording medium
US-10640669-B2 · May 5, 2020 · US
Water-borne precursors for forming heterophasic anti-fouling, polymeric coatings having a fluorinated continuous phase with non-fluorinated domains
US-10570292-B1 · Feb 25, 2020 · US
Composition and coating film
US-2020056065-A1 · Feb 20, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09D127/22?
- CPC C09D127/22 is the Cooperative Patent Classification code for “modified by chemical after-treatment.”
- How many patents are filed under CPC C09D127/22 (modified by chemical after-treatment)?
- Our database includes 98 publications tagged with this CPC code.
- Is patent activity under CPC C09D127/22 growing?
- Publication counts under this code: 10 in 2024 vs 2 in 2025 (latest complete years).