Organic compounds
US-2025382252-A1 · Dec 18, 2025 · US
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of a five-membered ring
of a five-membered ring · 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 | C07C49/597 |
| Official title | of a five-membered ring |
| Display label | of a five-membered ring |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 2 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compound producing method including step of isomerizing alpha, beta-unsaturated ketone
US-2024409486-A1 · Dec 12, 2024 · US
Use of substituted cyclopentenones and cyclopentanones as aroma ingredients
US-2024343992-A1 · Oct 17, 2024 · US
Materials for organic electroluminescent devices
US-11767299-B2 · Sep 26, 2023 · US
Method for preparing 1,3-cyclopentanediol
US-2023286887-A1 · Sep 14, 2023 · US
Circular economy methods of preparing unsaturated compounds
US-11753360-B2 · Sep 12, 2023 · US
Method for synthesizing novel compounds derived from 3-hydroxy-cylopentyl acetic acid
US-10995051-B2 · May 4, 2021 · US
Dehydrogenation reaction
US-10899694-B2 · Jan 26, 2021 · US
Materials for organic electroluminescent devices
US-2020190039-A1 · Jun 18, 2020 · US
Method for synthesizing novel compounds derived from 3-hydroxy-cyclopentyl acetic acid
US-10654788-B2 · May 19, 2020 · US
Method for synthesizing novel compounds derived from 3-hydroxy-cylopentyl acetic acid
US-2020131108-A1 · Apr 30, 2020 · US
Dehydrogenation reaction
US-2019345088-A1 · Nov 14, 2019 · US
Circular economy methods of preparing unsaturated compounds
US-10435345-B2 · Oct 8, 2019 · US
Method for synthesizing novel compounds derived from 3-hydroxy-cyclopentyl acetic acid
US-2018057440-A1 · Mar 1, 2018 · US
Methods for producing fuels, gasoline additives, and lubricants
US-9738617-B2 · Aug 22, 2017 · US
Process for the isomerisation of an exo double bond
US-9416082-B2 · Aug 16, 2016 · US