Process for the synthesis of twin-tail triamines
US-2023339841-A1 · Oct 26, 2023 · US
by reduction with hydrogen
by reduction with hydrogen · 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 | C07C209/26 |
| Official title | by reduction with hydrogen |
| Display label | by reduction with hydrogen |
| Total patents | 77 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 7 |
| 2017 | 4 |
| 2018 | 8 |
| 2019 | 7 |
| 2020 | 10 |
| 2021 | 7 |
| 2022 | 7 |
| 2023 | 9 |
| 2024 | 4 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for efficiently synthesizing primary amines
US-11766665-B2 · Sep 26, 2023 · US
Aliphatic amine and nitrile synthesis through catalytic co hydrogenation in the presence of ammonia
US-2023144422-A1 · May 11, 2023 · US
Materials comprising carbon-embedded cobalt nanoparticles, processes for their manufacture, and use as heterogeneous catalysts
US-2022314202-A1 · Oct 6, 2022 · US
Conversion of glycolaldehyde with an aminating agent
US-2022259139-A1 · Aug 18, 2022 · US
Products obtained by the conversion of glycolaldehyde derivatives and aminating agents and their conversion to ethyleneamines and ethanolamines
US-2022235015-A1 · Jul 28, 2022 · US
Gas-phase process for the conversion of glycolaldehyde with an aminating agent
US-2022234991-A1 · Jul 28, 2022 · US
Preparation of polyalkylene-polyamines by reductive amination
US-2022162152-A1 · May 26, 2022 · US
Hydrogenation catalyst for use in hydrogenating amide compound and method for producing amine compound using same
US-2022111367-A1 · Apr 14, 2022 · US
Pinene-derived diisocyanates
US-11225458-B2 · Jan 18, 2022 · US
Preparation method of substituted primary amine
US-11192846-B2 · Dec 7, 2021 · US
Low-emission epoxy resin composition
US-2021301075-A1 · Sep 30, 2021 · US
Process for producing aromatic primary diamines
US-11066377-B2 · Jul 20, 2021 · US
Process for the preparation of enantiomerically and diastereomerically enriched cyclobutane amines and amides
US-11053188-B2 · Jul 6, 2021 · US
Process for producing aromatic primary diamines
US-10899726-B2 · Jan 26, 2021 · US
Preparation method of substituted primary amine
US-2021017119-A1 · Jan 21, 2021 · US
N,N′-diaminopropyl-2-methylcyclohexane-1,3-diamine and N,N′-diaminopropyl-4-methylcyclohexane-1,3-diamine and the use thereof as curing agents for epoxy resins
US-10889683-B2 · Jan 12, 2021 · US
Process for the preparation of enantiomerically and diastereomerically enriched cyclobutane amines and amides
US-2020407311-A1 · Dec 31, 2020 · US
Reductive alkylation of amines with orthocarboxylic acid esters
US-10781164-B2 · Sep 22, 2020 · US
Method to convert lignin 4-O-5 diaryl ethers and their model compounds into organic chemicals
US-10766851-B1 · Sep 8, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C209/26?
- CPC C07C209/26 is the Cooperative Patent Classification code for “by reduction with hydrogen.”
- How many patents are filed under CPC C07C209/26 (by reduction with hydrogen)?
- Our database includes 77 publications tagged with this CPC code.
- Is patent activity under CPC C07C209/26 growing?
- Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).