Products obtained by the conversion of glycolaldehyde derivatives and aminating agents and their conversion to ethyleneamines and ethanolamines
US-12583827-B2 · Mar 24, 2026 · US
having no double bonds between ring members or between ring members and non-ring members
having no double bonds between ring members or between ring members and non-ring members · 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 | C07D251/04 |
| Official title | having no double bonds between ring members or between ring members and non-ring members |
| Display label | having no double bonds between ring members or between ring members and non-ring members |
| Total patents | 59 |
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 | 4 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 11 |
| 2022 | 11 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas-phase process for the conversion of glycolaldehyde with an aminating agent
US-12428383-B2 · Sep 30, 2025 · US
Polyvalent ammonium salt compound, composition for forming silicon-containing resist underlayer film, and patterning process
US-2025289931-A1 · Sep 18, 2025 · US
Lithium-ion battery and apparatus
US-2025055035-A1 · Feb 13, 2025 · US
Lithium-ion battery and apparatus
US-2025038266-A1 · Jan 30, 2025 · US
Lithium-ion battery and apparatus
US-12166175-B2 · Dec 10, 2024 · US
Conversion of glycolaldehyde with an aminating agent
US-12162842-B2 · Dec 10, 2024 · US
Hydrogen sulphide and mercaptans scavengers
US-2024392199-A1 · Nov 28, 2024 · US
Lithium-ion battery and apparatus
US-12136700-B2 · Nov 5, 2024 · US
Novel compound for light emitting device and organic light emitting device including same
US-2024271038-A1 · Aug 15, 2024 · US
Lipid particle, composition comprising lipid particle, and method for delivering activators to cell
US-11952351-B2 · Apr 9, 2024 · US
Compound and organic electroluminescence device using the same
US-11765972-B2 · Sep 19, 2023 · US
Lithium-ion battery and apparatus
US-11695157-B2 · Jul 4, 2023 · US
Lipid particle, composition comprising lipid particle, and method for derivering activators to cell
US-2023099139-A1 · Mar 30, 2023 · US
Biodegradable compound, lipid particle, composition comprising lipid particle, and kit
US-11548857-B2 · Jan 10, 2023 · US
Bioderived epoxide triazine networks and methods of making the same
US-11548858-B2 · Jan 10, 2023 · US
Lithium-ion battery and apparatus
US-2022393236-A1 · Dec 8, 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
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D251/04?
- CPC C07D251/04 is the Cooperative Patent Classification code for “having no double bonds between ring members or between ring members and non-ring members.”
- How many patents are filed under CPC C07D251/04 (having no double bonds between ring members or between ring members and non-ring members)?
- Our database includes 59 publications tagged with this CPC code.
- Is patent activity under CPC C07D251/04 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).