Periodate compositions and methods for chemical cleavage of surface-bound polynucleotides
US-2024401127-A1 · Dec 5, 2024 · US
Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms
Heterocyclic compounds containing more than two 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 | C07D323/00 |
| Official title | Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms |
| Display label | Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms |
| Total patents | 69 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 10 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Crown ether amines and methods of use
US-12122758-B2 · Oct 22, 2024 · US
Crown ether carbenes and methods of use
US-2024166619-A1 · May 23, 2024 · US
Crown ether amines and methods of use
US-2024158366-A1 · May 16, 2024 · US
Hepatitis c virus immunogenic compositions and methods of use thereof
US-2024058438-A1 · Feb 22, 2024 · US
Crown ether carbenes and methods of use
US-11905269-B1 · Feb 20, 2024 · US
Crown ether amines and methods of use
US-11787777-B1 · Oct 17, 2023 · US
Nonaqueous electrolyte solution and energy device using same
US-11631895-B2 · Apr 18, 2023 · US
Hepatitis C virus immunogenic compositions and methods of use thereof
US-11576968-B2 · Feb 14, 2023 · US
Rotaxane and polyurethane using the same
US-11555089-B2 · Jan 17, 2023 · US
Macrocyclic lipids
US-2022226244-A1 · Jul 21, 2022 · US
Fluorinated crown ethers and methods and systems for extraction of lithium using same
US-11266926-B2 · Mar 8, 2022 · US
New polymers and the use thereof for detecting ion fluxes
US-2022056189-A1 · Feb 24, 2022 · US
Compounds, their preparation, related compositions, catalysts, electrochemical cells, fuel cells, and uses thereof
US-11142835-B2 · Oct 12, 2021 · US
Rotaxane compound
US-2021238205-A1 · Aug 5, 2021 · US
Hepatitis c virus immunogenic compositions and methods of use thereof
US-2021170018-A1 · Jun 10, 2021 · US
Compounds and methods for treating fibrosis or cancer
US-2021009551-A1 · Jan 14, 2021 · US
Hepatitis C virus immunogenic compositions and methods of use thereof
US-10881726-B2 · Jan 5, 2021 · US
Fluorinated crown ethers and methods and systems for extraction of lithium using same
US-2020346137-A1 · Nov 5, 2020 · US
Nonaqueous electrolyte solution and energy device using same
US-2020274199-A1 · Aug 27, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D323/00?
- CPC C07D323/00 is the Cooperative Patent Classification code for “Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms.”
- How many patents are filed under CPC C07D323/00 (Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms)?
- Our database includes 69 publications tagged with this CPC code.
- Is patent activity under CPC C07D323/00 growing?
- Publication counts under this code: 10 in 2024 vs 5 in 2025 (latest complete years).