Re-crosslinkable hyper-branched polymer gels based on a transamidation reaction
US-12534663-B2 · Jan 27, 2026 · US
Amines containing three or more amino groups bound to the carbon skeleton
Amines containing three or more amino groups bound to the carbon skeleton · 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 | C07C211/13 |
| Official title | Amines containing three or more amino groups bound to the carbon skeleton |
| Display label | Amines containing three or more amino groups bound to the carbon skeleton |
| Total patents | 33 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compositions and methods for carbon dioxide capture
US-12458920-B2 · Nov 4, 2025 · US
Polyvalent ammonium salt compound, composition for forming silicon-containing resist underlayer film, and patterning process
US-2025289931-A1 · Sep 18, 2025 · US
Methods for stabilizing water sensitive clays and migrating fines in subterranean formations
US-2024209252-A1 · Jun 27, 2024 · US
Re-crosslinkable hyper-branched polymer gels based on a transmidation reaction
US-2024132771-A1 · Apr 25, 2024 · US
Methods for stabilizing water sensitive clays and migrating fines in subterranean formations
US-11708523-B2 · Jul 25, 2023 · US
Compositions and methods for carbon dioxide capture
US-2022387926-A1 · Dec 8, 2022 · US
3-(5-chloro-2-oxobenzo[d]oxazol-3(2h)-yl) propanoic acid derivatives as kmo inhibitors
US-2022298125-A1 · Sep 22, 2022 · US
Compositions and methods for carbon dioxide capture
US-11400410-B2 · Aug 2, 2022 · US
3-(5-chloro-2-oxobenzo[d]oxazol-3(2H)-yl) propanoic acid derivatives as KMO inhibitors
US-11352334-B2 · Jun 7, 2022 · US
Methods for stabilizing water sensitive clays and migrating fines in subterranean formations
US-2022169913-A1 · Jun 2, 2022 · US
Compositions and methods for stabilizing water sensitive clays and migrating fines in subterranean formations
US-11208590-B2 · Dec 28, 2021 · US
Compositions, methods, and devices for capturing phosphate from water
US-11136251-B2 · Oct 5, 2021 · US
Process for producing phenalkamines
US-2021188762-A1 · Jun 24, 2021 · US
Nitrogen-containing ligands and their use in atomic layer deposition methods
US-10738008-B2 · Aug 11, 2020 · US
Method for Scavenging Airborne Formaldehyde
US-2020197864-A1 · Jun 25, 2020 · US
Amidoamine and polyamide curing agents, compositions, and methods
US-10676564-B2 · Jun 9, 2020 · US
Polyetheramines based on 1,3-dialcohols
US-10633328-B2 · Apr 28, 2020 · US
3-(5-chloro-2-oxobenzo[d]oxazol-3(2h)-yl) propanoic acid derivatives as kmo inhibitors
US-2019345117-A1 · Nov 14, 2019 · US
Compositions and methods for carbon dioxide capture
US-2019329176-A1 · Oct 31, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C211/13?
- CPC C07C211/13 is the Cooperative Patent Classification code for “Amines containing three or more amino groups bound to the carbon skeleton.”
- How many patents are filed under CPC C07C211/13 (Amines containing three or more amino groups bound to the carbon skeleton)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC C07C211/13 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).