Chiral compound, liquid crystal composition containing the same, optically anisotropic body, and liquid crystal display device
US-2019352566-A1 · Nov 21, 2019 · US
Heterocyclic compounds containing rings having two oxygen atoms as the only ring hetero atoms, not provided for by groups C07D317/00 - C07D319/00
Heterocyclic compounds containing rings having two oxygen atoms as the only ring hetero atoms, not provided for by groups C07D317/00 - C07D319/00 · 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 | C07D321/00 |
| Official title | Heterocyclic compounds containing rings having two oxygen atoms as the only ring hetero atoms, not provided for by groups C07D317/00 - C07D319/00 |
| Display label | Heterocyclic compounds containing rings having two oxygen atoms as the only ring hetero atoms, not provided for by groups C07D317/00 - C07D319/00 |
| Total patents | 116 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 7 |
| 2017 | 9 |
| 2018 | 13 |
| 2019 | 13 |
| 2020 | 15 |
| 2021 | 11 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 7 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Organic Materials with Special Optical Effects
US-2019337885-A1 · Nov 7, 2019 · US
Prodrug and profluorescent compounds for selective mitochondrial imaging and therapeutic targeting
US-2019330176-A1 · Oct 31, 2019 · US
Chiral compound, liquid crystal composition containing the same, optically anisotropic body, and liquid crystal display device
US-10457870-B1 · Oct 29, 2019 · US
Light generating microcapsules for self-healing polymer applications
US-2019309105-A1 · Oct 10, 2019 · US
Chemiluminescent probes for diagnostics and in vivo imaging
US-2019290787-A1 · Sep 26, 2019 · US
Chiral cyclodecynes and methods
US-10421738-B2 · Sep 24, 2019 · US
Light generating microcapsules for self-healing polymer applications
US-10392452-B2 · Aug 27, 2019 · US
Salt, acid generator, photoresist composition and process of producing photoresist pattern
US-10359700-B2 · Jul 23, 2019 · US
Prins reaction and intermediates useful in the synthesis of halichondrin macrolides and analogs thereof
US-2019161495-A1 · May 30, 2019 · US
New adipate-type compounds and a process of preparing it
US-2019144415-A1 · May 16, 2019 · US
Bimesogenic compounds and mesogenic media
US-2019010400-A1 · Jan 10, 2019 · US
Light generating microcapsules for self-healing polymer applications
US-2018371122-A1 · Dec 27, 2018 · US
Chiral Cyclodecynes and Methods
US-2018370943-A1 · Dec 27, 2018 · US
Light generating microcapsules for self-healing polymer applications
US-2018371123-A1 · Dec 27, 2018 · US
In Situ Chemiluminescent Substrates and Assays
US-2018299456-A1 · Oct 18, 2018 · US
Macrocyclic picolinamides as fungicides
US-2018242582-A1 · Aug 30, 2018 · US
In situ chemiluminescent substrates and assays
US-10031142-B2 · Jul 24, 2018 · US
Condensed heterocyclic compound
US-9975903-B2 · May 22, 2018 · US
Use of macrocyclic picolinamides as fungicides
US-9974304-B2 · May 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D321/00?
- CPC C07D321/00 is the Cooperative Patent Classification code for “Heterocyclic compounds containing rings having two oxygen atoms as the only ring hetero atoms, not provided for by groups C07D317/00 - C07D319/00.”
- How many patents are filed under CPC C07D321/00 (Heterocyclic compounds containing rings having two oxygen atoms as the only ring hetero atoms, not provided for by groups C07D317/00 - C07D319/00)?
- Our database includes 116 publications tagged with this CPC code.
- Is patent activity under CPC C07D321/00 growing?
- Publication counts under this code: 7 in 2024 vs 6 in 2025 (latest complete years).