Solution, solution storage body, actinic ray-sensitive or radiation-sensitive resin composition, pattern forming method, and manufacturing method of semiconductor device
US-2025189887-A1 · Jun 12, 2025 · US
containing only phosphorus
containing only phosphorus · 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 | C09K15/322 |
| Official title | {containing only phosphorus} |
| Display label | containing only phosphorus |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 6 |
| 2018 | 7 |
| 2019 | 2 |
| 2020 | 5 |
| 2021 | 5 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process stabilizer, organic material composition, and method for stabilizing organic material
US-2025171476-A1 · May 29, 2025 · US
Solution, solution storage body, actinic ray-sensitive or radiation-sensitive resin composition, pattern forming method, and manufacturing method of semiconductor device
US-12253801-B2 · Mar 18, 2025 · US
Method of storing antioxidant mixture
US-2024294735-A1 · Sep 5, 2024 · US
Method of storing antioxidant mixture
US-2024287283-A1 · Aug 29, 2024 · US
Method of limiting chemical degradation due to nitrogen dioxide contamination
US-12006486-B2 · Jun 11, 2024 · US
Ionic liquid composition
US-11859149-B2 · Jan 2, 2024 · US
3-phenyl-benzofuran-2-one diphosphate derivatives as stabilizers
US-11767338-B2 · Sep 26, 2023 · US
Method of Limiting Chemical Degradation Due to Nitrogen Dioxide Contamination
US-2023139911-A1 · May 4, 2023 · US
Ionic Liquid Composition
US-2023140105-A1 · May 4, 2023 · US
Compositions
US-11560502-B2 · Jan 24, 2023 · US
Compositions
US-2021388252-A1 · Dec 16, 2021 · US
3-phenyl-benzofuran-2-one diphosphate derivatives as stabilizers
US-2021253617-A1 · Aug 19, 2021 · US
Compositions comprising 1,1-difluoroethene, trifluoromethane and a third component
US-11084962-B2 · Aug 10, 2021 · US
Stabilizer for thiol-ene compositions
US-10995270-B2 · May 4, 2021 · US
Use of phosphino polymer and polyhydroxypolycarboxylic acid as corrosion inhibitor
US-10882771-B2 · Jan 5, 2021 · US
Thermal stabilizer composition and synthetic resin composition comprising same
US-10654990-B2 · May 19, 2020 · US
Stabilizer for thiol-ene compositions
US-2020140755-A1 · May 7, 2020 · US
3-phenyl-benzofuran-2-one derivatives containing phosphorus as stabilizers
US-10590263-B2 · Mar 17, 2020 · US
Stabilizer for thiol-ene compositions
US-10563125-B2 · Feb 18, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K15/322?
- CPC C09K15/322 is the Cooperative Patent Classification code for “containing only phosphorus.”
- How many patents are filed under CPC C09K15/322 (containing only phosphorus)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC C09K15/322 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).