Nicotine salts, co-crystals, and salt co-crystal complexes
US-2018230126-A1 · Aug 16, 2018 · US
Two oxygen atoms
Two oxygen atoms · 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 | C07D239/52 |
| Official title | Two oxygen atoms |
| Display label | Two oxygen atoms |
| Total patents | 156 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 21 |
| 2017 | 18 |
| 2018 | 17 |
| 2019 | 18 |
| 2020 | 17 |
| 2021 | 12 |
| 2022 | 10 |
| 2023 | 9 |
| 2024 | 10 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Novel crystal forms of the monosodium salt of foramsulfuron
US-2018022711-A1 · Jan 25, 2018 · US
Negative allosteric modulators of metabotropic glutamate receptor 3
US-2018022712-A1 · Jan 25, 2018 · US
Tetra-aryl cyclobutane inhibitors of androgen receptor action for the treatment of hormone refractory cancer
US-9868705-B2 · Jan 16, 2018 · US
Treatment of pulmonary and other conditions
US-9862690-B2 · Jan 9, 2018 · US
Synergistic fungicidal active substance combinations
US-9844220-B2 · Dec 19, 2017 · US
Non-nucleoside reverse transcriptase inhibitors
US-2017349585-A1 · Dec 7, 2017 · US
Compound and organic photoelectric device, image sensor and electronic device including the same
US-2017331050-A1 · Nov 16, 2017 · US
Herbicidally active 2-(substituted-phenyl)-cyclopentane-1,3-dione compounds and derivatives thereof
US-9808003-B2 · Nov 7, 2017 · US
Arylalkyloxy pyrimidine derivative, pesticide for agricultural and horticultural use containing arylalkyloxy pyrimidine derivative as active ingredient, and use of same
US-9750252-B2 · Sep 5, 2017 · US
PROCESS FOR PREPARING (CYCLOPENTYL[d]PYRIMIDIN-4-YL)PIPERAZINE COMPOUNDS
US-2017247338-A1 · Aug 31, 2017 · US
N-(pyrid-4-yl)amides and N-(pyrimidin-4-yl)amides and their pharmaceutical and cosmetic use
US-9732044-B2 · Aug 15, 2017 · US
Neprilysin inhibitors
US-2017217959-A1 · Aug 3, 2017 · US
Non-nucleoside reverse transcriptase inhibitors
US-9718819-B2 · Aug 1, 2017 · US
Process for preparing a novel crystalline form of mesosulfuron-methyl and use of the same
US-9693558-B2 · Jul 4, 2017 · US
Process for preparing a novel crystalline form of mesosulfuron-methyl and use of the same
US-2017156330-A1 · Jun 8, 2017 · US
Polymer film, retardation film, polarizing plate, liquid crystal display, and compound
US-9656969-B2 · May 23, 2017 · US
Use of small molecule inhibitors to klf10 for modulation of t regulatory cells and cancer immunotherapy
US-2017121318-A1 · May 4, 2017 · US
Identification of compounds that disperse tdp-43 inclusions
US-2017088515-A1 · Mar 30, 2017 · US
N-(pyrid-4-yl)amides and n-(pyrimidin-4-yl)amides and their pharmaceutical and cosmetic use
US-2017066725-A1 · Mar 9, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D239/52?
- CPC C07D239/52 is the Cooperative Patent Classification code for “Two oxygen atoms.”
- How many patents are filed under CPC C07D239/52 (Two oxygen atoms)?
- Our database includes 156 publications tagged with this CPC code.
- Is patent activity under CPC C07D239/52 growing?
- Publication counts under this code: 10 in 2024 vs 6 in 2025 (latest complete years).