Organic polymer porous body
US-9512270-B2 · Dec 6, 2016 · US
containing one or more nitrogen atoms as the only heteroatom, e.g. pyrrole, pyridine or triazole
containing one or more nitrogen atoms as the only heteroatom, e.g. pyrrole, pyridine or triazole · 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 | C08G2261/3221 |
| Official title | containing one or more nitrogen atoms as the only heteroatom, e.g. pyrrole, pyridine or triazole |
| Display label | containing one or more nitrogen atoms as the only heteroatom, e.g. pyrrole, pyridine or triazole |
| Total patents | 286 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 39 |
| 2016 | 24 |
| 2017 | 32 |
| 2018 | 40 |
| 2019 | 38 |
| 2020 | 31 |
| 2021 | 25 |
| 2022 | 23 |
| 2023 | 11 |
| 2024 | 9 |
| 2025 | 12 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processes for purifying diketopyrrolopyrrole copolymers
US-2016329496-A1 · Nov 10, 2016 · US
High molecular compound, method for producing same, and light-emitting element
US-9478744-B2 · Oct 25, 2016 · US
Composite material with conductive and ferromagnetic properties and hybrid slurry
US-9469743-B2 · Oct 18, 2016 · US
Extended life Energy Storage Systems and Methods of Manufacturing Thereof
US-2016293938-A1 · Oct 6, 2016 · US
Hydrogel-mediated electropolymerization of conducting polymers
US-2016289851-A1 · Oct 6, 2016 · US
Synthesis of chalcogen-capped pi-conjugated polymers
US-9453102-B2 · Sep 27, 2016 · US
Thermoelectric conversion material, thermoelectric conversion element, article for thermoelectric power generation, and power source for sensor
US-2016260882-A1 · Sep 8, 2016 · US
Dyketopyrrolopyrrole polymers for use in organic semiconductor devices
US-9434812-B2 · Sep 6, 2016 · US
Organic light-emitting polymerand device
US-2016240785-A1 · Aug 18, 2016 · US
Light emitting device
US-2016233425-A1 · Aug 11, 2016 · US
Electrochromic compounds with improved color stability in their radical states
US-2016229803-A1 · Aug 11, 2016 · US
Polymer and organic light emitting device
US-2016218291-A1 · Jul 28, 2016 · US
Processes for purifying diketopyrrolopyrrole copolymers
US-9399698-B2 · Jul 26, 2016 · US
Methods and compositions for destructive interference
US-9356357-B2 · May 31, 2016 · US
Membranes for use in electrochemical sensors and associated devices
US-2016146751-A1 · May 26, 2016 · US
Method of producing layer structure, layer structure, and method of forming patterns
US-2016126088-A1 · May 5, 2016 · US
Electronic device, polymer compound, organic compound, and method of producing polymer compound
US-9306169-B2 · Apr 5, 2016 · US
Method for producing conductive polymer-containing dispersion
US-2016024315-A1 · Jan 28, 2016 · US
Thermoelectric conversion material, thermoelectric conversion element, article for thermoelectric power generation and power supply for sensor
US-2016013390-A1 · Jan 14, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G2261/3221?
- CPC C08G2261/3221 is the Cooperative Patent Classification code for “containing one or more nitrogen atoms as the only heteroatom, e.g. pyrrole, pyridine or triazole.”
- How many patents are filed under CPC C08G2261/3221 (containing one or more nitrogen atoms as the only heteroatom, e.g. pyrrole, pyridine or triazole)?
- Our database includes 286 publications tagged with this CPC code.
- Is patent activity under CPC C08G2261/3221 growing?
- Publication counts under this code: 9 in 2024 vs 12 in 2025 (latest complete years).