Phosphacycle compound and process for production thereof
US-10357764-B2 · Jul 23, 2019 · US
having phosphorus and oxygen atoms as the only ring hetero atoms
having phosphorus and oxygen atoms as the only ring hetero 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 | C07F9/6571 |
| Official title | having phosphorus and oxygen atoms as the only ring hetero atoms |
| Display label | having phosphorus and oxygen atoms as the only ring hetero atoms |
| Total patents | 124 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 13 |
| 2017 | 15 |
| 2018 | 13 |
| 2019 | 15 |
| 2020 | 8 |
| 2021 | 8 |
| 2022 | 16 |
| 2023 | 13 |
| 2024 | 5 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Highly isoselective catalyst for alkene hydroformylation
US-10351583-B2 · Jul 16, 2019 · US
Highly isoselective catalyst for alkene hydroformylation
US-2019161508-A1 · May 30, 2019 · US
Novel chiral dihydrobenzooxaphosphole ligands and synthesis thereof
US-2019144475-A1 · May 16, 2019 · US
Nucleotide analogs
US-10213430-B2 · Feb 26, 2019 · US
Chromium complex and catalyst therefrom
US-10207262-B2 · Feb 19, 2019 · US
Stereoselective process
US-10189776-B2 · Jan 29, 2019 · US
Highly isoselective catalyst for alkene hydroformylation
US-10183961-B1 · Jan 22, 2019 · US
Highly isoselective catalyst for alkene hydroformylation
US-10144751-B1 · Dec 4, 2018 · US
Non-aqueous electrolytic solution and lithium ion secondary battery
US-10128538-B2 · Nov 13, 2018 · US
Phosphacycle compound and process for production thereof
US-2018291048-A1 · Oct 11, 2018 · US
Crystalline ligand
US-10077281-B2 · Sep 18, 2018 · US
Stereoselective process
US-2018258031-A1 · Sep 13, 2018 · US
Non-aqueous electrolytic solution and lithium ion secondary battery
US-2018183099-A1 · Jun 28, 2018 · US
Process for oligomerization
US-2018154344-A1 · Jun 7, 2018 · US
Novel chiral dihydrobenzooxaphosphole ligands and synthesis thereof
US-2018155375-A1 · Jun 7, 2018 · US
Crystalline ligand
US-2018141968-A1 · May 24, 2018 · US
Chromium complex and catalyst therefrom
US-2018071725-A1 · Mar 15, 2018 · US
Condensed cyclic compound and organic light-emitting device including the same
US-2018076396-A1 · Mar 15, 2018 · US
Electrolyte for lithium secondary battery and lithium secondary battery including the electrolyte
US-2018065997-A1 · Mar 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07F9/6571?
- CPC C07F9/6571 is the Cooperative Patent Classification code for “having phosphorus and oxygen atoms as the only ring hetero atoms.”
- How many patents are filed under CPC C07F9/6571 (having phosphorus and oxygen atoms as the only ring hetero atoms)?
- Our database includes 124 publications tagged with this CPC code.
- Is patent activity under CPC C07F9/6571 growing?
- Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).