Cationic lipids for nucleic acid delivery and preparation thereof
US-2025162978-A1 · May 22, 2025 · US
containing at least two amino groups bound to the carbon skeleton · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C211/22 |
| Official title | containing at least two amino groups bound to the carbon skeleton |
| Display label | containing at least two amino groups bound to the carbon skeleton |
| Total patents | 27 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 1 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025162978-A1 · May 22, 2025 · US
US-2024246898-A1 · Jul 25, 2024 · US
US-11851389-B2 · Dec 26, 2023 · US
US-11732062-B2 · Aug 22, 2023 · US
US-11377583-B2 · Jul 5, 2022 · US
US-2021302113-A1 · Sep 30, 2021 · US
US-11021434-B2 · Jun 1, 2021 · US
US-2020299419-A1 · Sep 24, 2020 · US
US-2020290946-A1 · Sep 17, 2020 · US
US-10696848-B2 · Jun 30, 2020 · US
US-10662143-B2 · May 26, 2020 · US
US-2020131429-A1 · Apr 30, 2020 · US
US-10563284-B2 · Feb 18, 2020 · US
US-10562842-B2 · Feb 18, 2020 · US
US-2019345581-A1 · Nov 14, 2019 · US
US-2019345580-A1 · Nov 14, 2019 · US
US-2019292130-A1 · Sep 26, 2019 · US
US-2019071390-A1 · Mar 7, 2019 · US
US-2019040266-A1 · Feb 7, 2019 · US
US-2017015617-A1 · Jan 19, 2017 · US
Answers are generated from the same data shown on this page.