Dihydroxytyrosol hexamethylene-1,6-dicarbamate having antioxidant activity and a method of preparing the same
US-10487046-B1 · Nov 26, 2019 · US
containing nitrogen and oxygen
containing nitrogen and oxygen · 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 | C09K15/20 |
| Official title | containing nitrogen and oxygen |
| Display label | containing nitrogen and oxygen |
| Total patents | 133 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 17 |
| 2017 | 12 |
| 2018 | 10 |
| 2019 | 17 |
| 2020 | 18 |
| 2021 | 13 |
| 2022 | 13 |
| 2023 | 9 |
| 2024 | 9 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for storing and transporting chloroalkanes
US-2019300789-A1 · Oct 3, 2019 · US
Chemical synthesis of hybrid inorganic-organic nanostructured corrosion inhibitive pigments and methods
US-2019300790-A1 · Oct 3, 2019 · US
Polyisocyanate composition and isocyanate polymer composition
US-10301417-B2 · May 28, 2019 · US
Using novel amines to stabilize quaternary trialkylalkanolamines
US-10264785-B2 · Apr 23, 2019 · US
Reaction products and methods for making and using the same
US-2019112240-A1 · Apr 18, 2019 · US
Reaction products and methods for making and using the same
US-10239799-B2 · Mar 26, 2019 · US
Surface treatment composition, method for producing surface treatment composition, surface treatment method, and method for producing semiconductor substrate
US-2019085270-A1 · Mar 21, 2019 · US
Aqueous solution containing N-long-chain acyl acidic amino acid and/or salt thereof, and method for producing same
US-10220094-B2 · Mar 5, 2019 · US
Aqueous solution containing n-long-chain acyl acidic amino acid and/or salt thereof, and method for producing same
US-2019060460-A1 · Feb 28, 2019 · US
Compositions, quantum dot polymer composite and layered structure produced therefrom, and electronic device including the same
US-2019055465-A1 · Feb 21, 2019 · US
Amino and imino propionic acids, process of preparation and use
US-10207983-B2 · Feb 19, 2019 · US
Refrigeration apparatus
US-2019048240-A1 · Feb 14, 2019 · US
Amino and imino propionic acids, process of preparation and use
US-10167249-B2 · Jan 1, 2019 · US
Process and composition for inhibiting the polymerization of cyclopentadiene compounds
US-10138183-B2 · Nov 27, 2018 · US
Polyisocyanate composition and isocyanate polymer composition
US-10125212-B2 · Nov 13, 2018 · US
5H-furan-2-one derivatives stabilization of organic material
US-10113052-B2 · Oct 30, 2018 · US
Lubricant Composition
US-2018265800-A1 · Sep 20, 2018 · US
Amino and imino propionic acids, process of preparation and use
US-10035757-B2 · Jul 31, 2018 · US
Reaction products and methods for making and using the same
US-2018179118-A9 · Jun 28, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K15/20?
- CPC C09K15/20 is the Cooperative Patent Classification code for “containing nitrogen and oxygen.”
- How many patents are filed under CPC C09K15/20 (containing nitrogen and oxygen)?
- Our database includes 133 publications tagged with this CPC code.
- Is patent activity under CPC C09K15/20 growing?
- Publication counts under this code: 9 in 2024 vs 7 in 2025 (latest complete years).