Process for preparing a diamine/dicarboxylic acid salt
US-2016376220-A1 · Dec 29, 2016 · US
from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of 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 | C07C209/68 |
| Official title | from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton |
| Display label | from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton |
| Total patents | 340 |
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 | 28 |
| 2016 | 38 |
| 2017 | 43 |
| 2018 | 32 |
| 2019 | 45 |
| 2020 | 31 |
| 2021 | 39 |
| 2022 | 23 |
| 2023 | 21 |
| 2024 | 20 |
| 2025 | 12 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for decarboxylation of amino acids via imine formation
US-2016362380-A1 · Dec 15, 2016 · US
Process for preparing a diamine/dicarboxylic acid salt
US-9475753-B2 · Oct 25, 2016 · US
Difluoromethylation of aryl and vinyl iodides
US-9475756-B2 · Oct 25, 2016 · US
Composition of matter
US-2016304538-A1 · Oct 20, 2016 · US
Compounds and organic electronic devices
US-2016301005-A1 · Oct 13, 2016 · US
Method for preparation of cyano compounds of the 13th group with a lewis acid
US-9458180-B2 · Oct 4, 2016 · US
Improved process for preparing chlorinated biphenylanilides and biphenylanilines
US-2016280635-A1 · Sep 29, 2016 · US
Method for producing aromatic compound
US-9453103-B2 · Sep 27, 2016 · US
Method for decarboxylation of amino acids via imine formation
US-9452954-B2 · Sep 27, 2016 · US
Process for preparing N-(5-chloro-2-isopropylbenzyl)cyclopropanamine
US-9440908-B2 · Sep 13, 2016 · US
Production method for 2-alkenylamine compound
US-9440907-B2 · Sep 13, 2016 · US
Regeneration of clay catalysts for alkylation of aromatic rings
US-2016256864-A1 · Sep 8, 2016 · US
Methods of chemical synthesis of diaminophenothiazinium compounds including methylthioninium chloride (mtc)
US-2016251325-A1 · Sep 1, 2016 · US
Method for Preparation of Cyano Compounds of the 13th Group with a Lewis Acid
US-2016229874-A1 · Aug 11, 2016 · US
Isomerization method for bis (aminomethyl) cyclohexane
US-2016207877-A1 · Jul 21, 2016 · US
Method of producing chiral N-substituted allylic amine compounds
US-9394229-B2 · Jul 19, 2016 · US
Method of making a templating agent
US-2016185709-A1 · Jun 30, 2016 · US
Materials for organic electroluminescent devices
US-2016190447-A1 · Jun 30, 2016 · US
Process for producing amine compounds
US-9376372-B2 · Jun 28, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C209/68?
- CPC C07C209/68 is the Cooperative Patent Classification code for “from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton.”
- How many patents are filed under CPC C07C209/68 (from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton)?
- Our database includes 340 publications tagged with this CPC code.
- Is patent activity under CPC C07C209/68 growing?
- Publication counts under this code: 20 in 2024 vs 12 in 2025 (latest complete years).