Materials comprising carbon-embedded nickel nanoparticles, processes for their manufacture, and use as heterogeneous catalysts
US-12544741-B2 · Feb 10, 2026 · US
by reduction of unsaturated amines
by reduction of unsaturated amines · 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 | C07C209/70 |
| Official title | by reduction of unsaturated amines |
| Display label | by reduction of unsaturated amines |
| Total patents | 53 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 6 |
| 2019 | 8 |
| 2020 | 10 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for preparing chiral alkyl compounds by asymmetric hydrogenation of olefins catalyzed by iron complex
US-12221409-B2 · Feb 11, 2025 · US
Method for preparing chiral alkyl compounds by asymmetric hydrogenation of olefins catalyzed by iron complex
US-2024174588-A1 · May 30, 2024 · US
Process for manufacturing a mixture of straight-hain and non-straight-chain ethyleneamines
US-11584721-B2 · Feb 21, 2023 · US
Syntheses of N-heterocyclic carbenes and intermediates therefor
US-11572348-B2 · Feb 7, 2023 · US
Materials comprising carbon-embedded nickel nanoparticles, processes for their manufacture, and use as heterogeneous catalysts
US-2022347658-A1 · Nov 3, 2022 · US
Process for converting S-enantiomer to its racemic form
US-11319277-B2 · May 3, 2022 · US
Polymerization initiator composition, preparation method therefor, and method for preparing polymer using same
US-11214665-B2 · Jan 4, 2022 · US
N-(7-fluoro-1,1,3-trimethyl -1 H-inden-4yl) amides and a process for preparing same
US-11208374-B2 · Dec 28, 2021 · US
Syntheses of n-heterocyclic carbenes and intermediates therefor
US-2021317088-A9 · Oct 14, 2021 · US
Cobalt complexes, process for preparation and use thereof
US-11040994-B2 · Jun 22, 2021 · US
Nitrogen and/or oxygen-containing hydrofluoroolefins and methods of making and using the same
US-10934247-B2 · Mar 2, 2021 · US
Process for manufacturing a mixture of straight-chain and non-straight-chain ethyleneamines
US-2020361873-A1 · Nov 19, 2020 · US
Syntheses of n-heterocyclic carbenes and intermediates therefor
US-2020354323-A1 · Nov 12, 2020 · US
Homogeneous catalysts that are recoverable by host-guest interactions
US-10828628-B2 · Nov 10, 2020 · US
Syntheses of N-heterocyclic carbenes and intermediates therefor
US-10759763-B2 · Sep 1, 2020 · US
Water soluble homogeneous catalysts that are recoverable by phase selectivity and host-guest interactions
US-10737255-B2 · Aug 11, 2020 · US
Cobalt complexes, process for preparation and use thereof
US-2020223880-A1 · Jul 16, 2020 · US
Process for converting s-enantiomer to its racemic form
US-2020157039-A1 · May 21, 2020 · US
Nitrogen and/or oxygen-containing hydrofluoroolefins and methods of making and using the same
US-2020071258-A1 · Mar 5, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C209/70?
- CPC C07C209/70 is the Cooperative Patent Classification code for “by reduction of unsaturated amines.”
- How many patents are filed under CPC C07C209/70 (by reduction of unsaturated amines)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC C07C209/70 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).