Three-Dimensional Organic Sandwich Chirality and Its Synthetic Assembly
US-2022041634-A1 · Feb 10, 2022 · US
having a quinolyl-4, a substituted quinolyl-4 or a alkylenedioxy-quinolyl-4 radical linked through only one carbon atom, attached in position 2, e.g. quinine · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07D453/04 |
| Official title | having a quinolyl-4, a substituted quinolyl-4 or a alkylenedioxy-quinolyl-4 radical linked through only one carbon atom, attached in position 2, e.g. quinine |
| Display label | having a quinolyl-4, a substituted quinolyl-4 or a alkylenedioxy-quinolyl-4 radical linked through only one carbon atom, attached in position 2, e.g. quinine |
| Total patents | 72 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 10 |
| 2017 | 18 |
| 2018 | 3 |
| 2019 | 8 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 4 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2022041634-A1 · Feb 10, 2022 · US
US-2021284601-A1 · Sep 16, 2021 · US
US-2021179541-A1 · Jun 17, 2021 · US
US-2021145800-A1 · May 20, 2021 · US
US-2021022344-A1 · Jan 28, 2021 · US
US-10888853-B2 · Jan 12, 2021 · US
US-10836761-B2 · Nov 17, 2020 · US
US-10758542-B2 · Sep 1, 2020 · US
US-10750744-B2 · Aug 25, 2020 · US
US-10696621-B2 · Jun 30, 2020 · US
US-10610857-B2 · Apr 7, 2020 · US
US-2020048243-A1 · Feb 13, 2020 · US
US-2019365763-A1 · Dec 5, 2019 · US
US-10433552-B2 · Oct 8, 2019 · US
US-2019292133-A1 · Sep 26, 2019 · US
US-10414762-B2 · Sep 17, 2019 · US
US-2019133129-A1 · May 9, 2019 · US
US-2019105643-A1 · Apr 11, 2019 · US
US-10251889-B2 · Apr 9, 2019 · US
US-2019010150-A1 · Jan 10, 2019 · US
Answers are generated from the same data shown on this page.