Tribenzotriquinacene with axial aryl group and method for preparing the same
US-2025250215-A1 · Aug 7, 2025 · US
with a bridged ring system
with a bridged ring system · 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 | C07C13/64 |
| Official title | with a bridged ring system |
| Display label | with a bridged ring system |
| Total patents | 27 |
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 | 7 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 7 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compound, organic electroluminescence device and electronic apparatus
US-2023192669-A1 · Jun 22, 2023 · US
Organic compound and organic light-emitting element
US-11492313-B2 · Nov 8, 2022 · US
Compounds that can be used for producing an organic electronic device
US-2022006018-A1 · Jan 6, 2022 · US
Copolymer, polymer, molding material and resin molded body
US-11192976-B2 · Dec 7, 2021 · US
Method for producing fullerene derivative
US-11136298-B2 · Oct 5, 2021 · US
Organic compound and organic light-emitting element
US-2020377433-A1 · Dec 3, 2020 · US
Copolymer, polymer, molding material and resin molded body
US-2020231745-A1 · Jul 23, 2020 · US
Copolymer, polymer, molding material and resin molded body
US-10647811-B2 · May 12, 2020 · US
Hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer
US-10611878-B2 · Apr 7, 2020 · US
Method for producing fullerene derivative
US-2020095209-A1 · Mar 26, 2020 · US
Hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer, syndiotactic dicyclopentadiene ring-opening polymer, and production method for these
US-10590233-B2 · Mar 17, 2020 · US
Method for producing fullerene derivative
US-10526293-B2 · Jan 7, 2020 · US
Fullerene derivatives, and related materials, methods and devices
US-10361371-B2 · Jul 23, 2019 · US
Cycloalkylnorbornene monomers, polymers derived therefrom and their use in pervaporation
US-10227433-B2 · Mar 12, 2019 · US
Hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer
US-2018105636-A1 · Apr 19, 2018 · US
Copolymer, polymer, molding material and resin molded body
US-2018086877-A1 · Mar 29, 2018 · US
Hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer, syndiotactic dicyclopentadiene ring-opening polymer, and production method for these
US-2018044468-A1 · Feb 15, 2018 · US
Method for producing fullerene derivative
US-2017253567-A1 · Sep 7, 2017 · US
Fullerene derivatives, and related materials, methods and devices
US-2017098775-A1 · Apr 6, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C13/64?
- CPC C07C13/64 is the Cooperative Patent Classification code for “with a bridged ring system.”
- How many patents are filed under CPC C07C13/64 (with a bridged ring system)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC C07C13/64 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).