Crystalline Sp-Sp2 Hybridized Carbon Allotropes through Dynamic Covalent Synthesis
US-2024286903-A1 · Aug 29, 2024 · US
Two-dimensional structures
Two-dimensional structures · 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 | C01P2002/20 |
| Official title | Two-dimensional structures |
| Display label | Two-dimensional structures |
| Total patents | 414 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 15 |
| 2017 | 27 |
| 2018 | 25 |
| 2019 | 28 |
| 2020 | 54 |
| 2021 | 48 |
| 2022 | 55 |
| 2023 | 45 |
| 2024 | 63 |
| 2025 | 31 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sodium layered oxides as cathode materials for sodium ion batteries and method of manufacturing the same
US-12030786-B2 · Jul 9, 2024 · US
Dielectric material, method of manufacturing thereof, and dielectric devices and electronic devices including the same
US-2018261388-A1 · Sep 13, 2018 · US
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery using said positive electrode active material
US-2017352885-A1 · Dec 7, 2017 · US
Electrically conductive thin films
US-9837179-B2 · Dec 5, 2017 · US
Compositions comprising free-standing two-dimensional nanocrystals
US-9837182-B2 · Dec 5, 2017 · US
Cathode active material for lithium secondary battery and lithium secondary battery comprising the same
US-9837661-B2 · Dec 5, 2017 · US
Conductive material and electrical device including the same
US-9809455-B2 · Nov 7, 2017 · US
Multi-layered graphene material having a plurality of yolk/shell structures
US-2017309362-A1 · Oct 26, 2017 · US
Positive electrode active material for nonaqueous electrolyte secondary battery
US-2017288223-A1 · Oct 5, 2017 · US
Lithium Metal Composite Oxide Powder
US-2017288215-A1 · Oct 5, 2017 · US
Cathode active material and lithium secondary battery comprising the same
US-9780371-B2 · Oct 3, 2017 · US
Transition metal dichalcogenide aerogels and methods of preparation and use
US-2017267543-A1 · Sep 21, 2017 · US
Positive active material for rechargeable lithium battery, method of manufacturing the same, and rechargeable lithium battery including the same
US-2017263925-A1 · Sep 14, 2017 · US
Germanosilicate compositions and methods of preparing the same
US-2017252729-A1 · Sep 7, 2017 · US
Non-lithium metal ion battery electrode material architecture
US-9745205-B1 · Aug 29, 2017 · US
Two-dimensional carbon nitride material and method of preparation
US-2017240422-A1 · Aug 24, 2017 · US
Non-lithium metal ion battery electrode material architecture
US-9725331-B2 · Aug 8, 2017 · US
Transition metal dichalcogenide aerogels and methods of preparation and use
US-9725332-B2 · Aug 8, 2017 · US
Layered oxide materials for batteries
US-2017222224-A1 · Aug 3, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01P2002/20?
- CPC C01P2002/20 is the Cooperative Patent Classification code for “Two-dimensional structures.”
- How many patents are filed under CPC C01P2002/20 (Two-dimensional structures)?
- Our database includes 414 publications tagged with this CPC code.
- Is patent activity under CPC C01P2002/20 growing?
- Publication counts under this code: 63 in 2024 vs 31 in 2025 (latest complete years).