Combination of uv absorber and pigment for protection of substrates from uv/vis-radiation
US-2017369455-A1 · Dec 28, 2017 · US
containing heterocyclic ring with at least one nitrogen atom as ring member
containing heterocyclic ring with at least one nitrogen atom as ring member · 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 | C09K15/30 |
| Official title | containing heterocyclic ring with at least one nitrogen atom as ring member |
| Display label | containing heterocyclic ring with at least one nitrogen atom as ring member |
| Total patents | 180 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 26 |
| 2017 | 25 |
| 2018 | 16 |
| 2019 | 14 |
| 2020 | 15 |
| 2021 | 9 |
| 2022 | 16 |
| 2023 | 11 |
| 2024 | 16 |
| 2025 | 12 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid crystal display device
US-2017363891-A1 · Dec 21, 2017 · US
Processes for producing molded articles stabilized against ultraviolet light and thermal degradation
US-2017349730-A1 · Dec 7, 2017 · US
Corrosion and fouling mitigation using non-phosphorus based additives
US-9828269-B2 · Nov 28, 2017 · US
Compositons and methods comprising nitrification inhibitors containing a mixture of protic and aprotic solvent systems
US-2017240483-A1 · Aug 24, 2017 · US
Stabilizing compositions for stabilizing materials against ultraviolet light and thermal degradation
US-9725579-B2 · Aug 8, 2017 · US
Method and compositions for inhibition of naphthenic acid induced corrosion
US-9719035-B2 · Aug 1, 2017 · US
Antioxidant for thermoplastic resin and thermoplastic resin composition containing same
US-2017198117-A1 · Jul 13, 2017 · US
Sterically hindered amine light stabilizers with a mixed functionalization
US-2017107352-A1 · Apr 20, 2017 · US
Neprilysin inhibitors
US-2017088526-A1 · Mar 30, 2017 · US
Humic acid derivatives and methods of preparation and use
US-2017088528-A1 · Mar 30, 2017 · US
Highly effective stabilizer
US-2017073498-A1 · Mar 16, 2017 · US
Nitrification inhibitors
US-2017036969-A1 · Feb 9, 2017 · US
Humic acid derivatives and methods of preparation and use
US-9556134-B2 · Jan 31, 2017 · US
Sterically hindered amine light stabilizers with a mixed functionalization
US-9550941-B2 · Jan 24, 2017 · US
5h-furan-2-one derivatives stabilization of organic material
US-2016362535-A1 · Dec 15, 2016 · US
Neprilysin inhibitors
US-9499487-B2 · Nov 22, 2016 · US
Polymers having acid and amide moieties, and uses thereof
US-9493598-B2 · Nov 15, 2016 · US
Oxygen Scavengers, Compositions Comprising the Scavengers, and Articles Made from the Compositions
US-2016311771-A1 · Oct 27, 2016 · US
Stabilizer mixture
US-9475918-B2 · Oct 25, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K15/30?
- CPC C09K15/30 is the Cooperative Patent Classification code for “containing heterocyclic ring with at least one nitrogen atom as ring member.”
- How many patents are filed under CPC C09K15/30 (containing heterocyclic ring with at least one nitrogen atom as ring member)?
- Our database includes 180 publications tagged with this CPC code.
- Is patent activity under CPC C09K15/30 growing?
- Publication counts under this code: 16 in 2024 vs 12 in 2025 (latest complete years).