Antioxidant having high antioxidant capability for fuel cell, and electrolyte membrane and membrane-electrode assembly comprising same
US-2021305611-A1 · Sep 30, 2021 · US
containing inorganic compounds
containing inorganic compounds · 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 | C09K15/02 |
| Official title | containing inorganic compounds |
| Display label | containing inorganic compounds |
| Total patents | 120 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 9 |
| 2019 | 13 |
| 2020 | 16 |
| 2021 | 17 |
| 2022 | 12 |
| 2023 | 11 |
| 2024 | 8 |
| 2025 | 12 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Slurry composition and method of manufacturing integrated circuit device by using the same
US-2020392375-A1 · Dec 17, 2020 · US
Benzotriazole derivatives as corrosion inhibitors
US-10858585-B2 · Dec 8, 2020 · US
Method of manufacturing electrolyte membrane for fuel cells and method of manufacturing membrane-electrode assembly including the same
US-10862135-B2 · Dec 8, 2020 · US
Stabilizer composition, vinyl chloride resin composition containing same, and article molded therefrom
US-2020362145-A1 · Nov 19, 2020 · US
Method and apparatus for inhibiting corrosion from fire suppression agents in situ
US-2020332192-A1 · Oct 22, 2020 · US
Antioxidant for fuel cells and fuel cell comprising the same
US-2020313213-A1 · Oct 1, 2020 · US
Methods of protecting furnace electrodes with cooling liquid that contains an additive
US-2020275535-A1 · Aug 27, 2020 · US
Membrane-electrode assembly for fuel cells having improved durability and a polymer electrolyte membrane fuel cell including the same
US-10714778-B2 · Jul 14, 2020 · US
Display device and organic luminescent display device
US-2020212358-A1 · Jul 2, 2020 · US
Methods of protecting furnace electrodes with cooling liquid that contains an additive
US-10694592-B1 · Jun 23, 2020 · US
Methods of protecting furnace electrodes with cooling liquid that contains an additive
US-2020196404-A1 · Jun 18, 2020 · US
Copper nanoparticle and preparation method therefor
US-2020164442-A1 · May 28, 2020 · US
In-line chemical heating for in-situ generation of active chemicals
US-10647928-B2 · May 12, 2020 · US
Display device and organic luminescent display device
US-10600995-B2 · Mar 24, 2020 · US
Membrane-electrode assembly for fuel cells having improved durability and manufacturing method thereof
US-2020075983-A1 · Mar 5, 2020 · US
Antioxidant for electrolyte membrane of fuel cells and method for preparing the same
US-2020020967-A1 · Jan 16, 2020 · US
Display device and organic luminescent display device
US-2019363294-A1 · Nov 28, 2019 · US
Stabilized scintillator
US-10479934-B1 · Nov 19, 2019 · US
Metal-clay nanocomposite coatings for corrosion resistance
US-2019330757-A1 · Oct 31, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K15/02?
- CPC C09K15/02 is the Cooperative Patent Classification code for “containing inorganic compounds.”
- How many patents are filed under CPC C09K15/02 (containing inorganic compounds)?
- Our database includes 120 publications tagged with this CPC code.
- Is patent activity under CPC C09K15/02 growing?
- Publication counts under this code: 8 in 2024 vs 12 in 2025 (latest complete years).