C-substituted, 1H-azoles for amphoteric, solvent-less proton conductivity
US-9217062-B2 · Dec 22, 2015 · US
Five-membered rings
Five-membered rings · 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 | C07D257/04 |
| Official title | Five-membered rings |
| Display label | Five-membered rings |
| Total patents | 662 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 68 |
| 2016 | 95 |
| 2017 | 97 |
| 2018 | 62 |
| 2019 | 68 |
| 2020 | 63 |
| 2021 | 59 |
| 2022 | 50 |
| 2023 | 36 |
| 2024 | 29 |
| 2025 | 27 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Acylguanidines for treating osteoarthritis
US-2015361037-A1 · Dec 17, 2015 · US
Sulfonamide compounds and their use in the modulation retinoid-related orphan receptor
US-2015361039-A1 · Dec 17, 2015 · US
Process for the preparation of N-hydroxy-1-(1-alkyl-1H-tetrazol-5-yl)-1-phenylmethanimine derivatives
US-9212152-B2 · Dec 15, 2015 · US
Biphenyl-ethyl-pyrrolidine derivatives as histamine h3 receptor modulators for the treatment of cognitive disorders
US-2015353488-A1 · Dec 10, 2015 · US
N-(1,2,5-oxadiazol-3-yl)-, N-(1,3,4-oxadiazol-2-yl)-, N-(tetrazol-5-yl)-, and N-(triazol-5-yl) aryl carboxylic acid amides and use thereof as herbicides
US-9204650-B2 · Dec 8, 2015 · US
Compounds and Methods of Use Thereof for Treating Tumors
US-2015344440-A1 · Dec 3, 2015 · US
Guanidinobenzoic acid compound
US-9199927-B2 · Dec 1, 2015 · US
Epoxyeicosatrienoic acid analogs and methods of making and using the same
US-2015336916-A1 · Nov 26, 2015 · US
Tetrazolinone compound and use thereof
US-2015336908-A1 · Nov 26, 2015 · US
Fluorene compound and pharmaceutical use thereof
US-2015329491-A1 · Nov 19, 2015 · US
Bicyclic aryl sphingosine 1-phosphate analogs
US-9186367-B2 · Nov 17, 2015 · US
Therapeutic catechols
US-2015322022-A1 · Nov 12, 2015 · US
Method for producing 1-h-tetrazole derivative
US-2015322021-A1 · Nov 12, 2015 · US
Compounds that inhibit human dna ligases and methods of treating cancer
US-2015313898-A1 · Nov 5, 2015 · US
Process for the preparation of n-hydroxy-1-(1-alkyl-1h-tetrazol-5-yl)-1-phenylmethanimine derivatives
US-2015299145-A1 · Oct 22, 2015 · US
Tetrazolinone compound and applications thereof
US-2015299146-A1 · Oct 22, 2015 · US
Tricyclic compound
US-2015291587-A1 · Oct 15, 2015 · US
Heterocycle-bisamide inhibitors of scavenger receptor bi
US-2015284371-A1 · Oct 8, 2015 · US
Sulfonamide compounds and their use in the modulation retinoid-related orphan receptor
US-9150508-B2 · Oct 6, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D257/04?
- CPC C07D257/04 is the Cooperative Patent Classification code for “Five-membered rings.”
- How many patents are filed under CPC C07D257/04 (Five-membered rings)?
- Our database includes 662 publications tagged with this CPC code.
- Is patent activity under CPC C07D257/04 growing?
- Publication counts under this code: 29 in 2024 vs 27 in 2025 (latest complete years).