3,3,3′,3′-tetramethyl-1,1′-spirobiindane-7,7′-diol
US-12291497-B2 · May 6, 2025 · US
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containing at least one ring with less than six members
containing at least one ring with less than six members · 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 | C07C2603/96 |
| Official title | containing at least one ring with less than six members |
| Display label | containing at least one ring with less than six members |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 1 |
| 2022 | 2 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
VDR-silent vitamin D derivative as inhibitors of SREBP and pharmaceutical use thereof
US-11932595-B2 · Mar 19, 2024 · US
Light emitting element and amine compound for the same
US-2024057473-A1 · Feb 15, 2024 · US
3,3,3',3'-tetramethyl-1,1'-spirobiindane-7,7'-diol
US-2022213015-A1 · Jul 7, 2022 · US
Vdr-silent vitamin d derivative as inhibitors of srebp and pharmaceutical use thereof
US-2022081381-A1 · Mar 17, 2022 · US
Cyclopropanation of substituted alkenes
US-10584080-B2 · Mar 10, 2020 · US
Cyclopropanation of substituted alkenes
US-2019177247-A1 · Jun 13, 2019 · US
Cyclopropanation of substituted alkenes
US-10227269-B2 · Mar 12, 2019 · US
Organic compound and organic light emitting diode device including the same
US-10050217-B2 · Aug 14, 2018 · US
Cyclopropanation of substituted alkenes
US-2018170830-A1 · Jun 21, 2018 · US
Materials for organic electroluminescent devices
US-9947874-B2 · Apr 17, 2018 · US
Materials for organic electroluminescent devices
US-2016190447-A1 · Jun 30, 2016 · US
Organic compound and organic light emitting diode device including the same
US-2016126479-A1 · May 5, 2016 · US
Materials for organic electroluminescent devices
US-9312495-B2 · Apr 12, 2016 · US