C07C 243/20
Having nitrogen atoms of hydrazine groups bound to carbon atoms of rings
Official title: having nitrogen atoms of hydrazine groups bound to carbon atoms of rings other than six-membered aromatic rings
C07C243/20 (Having nitrogen atoms of hydrazine groups bound to carbon atoms of rings) appears on 17 US grants and 14 published applications in this corpus.
Search patents in C07C- Granted patents
- 17
- Published applications
- 14
- Assignees
- 13
- Inventors
- 49
- Latest grant
- 13 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
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| 1986 | 1 | 0 |
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| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
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| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 2 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Hypocrellin derivative substituted both in a peri-position and in 2-position by amino, preparation method, and application thereof13 Sep 2022US 11,439,707 B2Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences
- Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound17 Aug 2021US 11,091,452 B2Zeon Corporation
- Polymerizable compound, polymerizable composition, polymer, and optically anisotropic material12 May 2020US 10,647,794 B2Zeon Corporation
- Polymerizable compound and optical isomer24 Mar 2020US 10,597,371 B2DIC Corporation
- Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound26 Nov 2019US 10,487,065 B2Zeon Corporation
- Covalent Inhibitors As Antiviral Agents3 Oct 2024US 2024/0327334 A1Enanta Pharmaceuticals, Inc.
- Compound, polymerizable composition, optically anisotropic film, optical film, polarizing plate, and image display device3 Oct 2024US 2024/0327556 A1FUJIFILM Corporation
- Hypocrellin derivative substituted both in a peri-position and in 2-position by amino, preparation method, and application thereof20 May 2021US 2021/0145968 A1Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences
- Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound13 Feb 2020US 2020/0048213 A1Zeon Corporation
- Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound28 Feb 2019US 2019/0062289 A1Zeon Corporation
Most cited
By later US patents
- 7-(substituted)-8-(substituted)-9-substituted amino)-6-demethyl-6-deoxytetracyclines51US 5,430,162 AAmerican Cyanamid Company · 1995
- 7-(substituted-9-(substituted amino)-6-demethyl-6-deoxytetracyclines38US 5,495,018 AAmerican Cyanamid Company · 1996
- 7-(substituted)-8-(substituted)-9-(substitued amino)-6-demethyl-6-deoxytetracyclines38US 5,886,175 AAmerican Cyanamid Company · 1999
- 7-(substituted)-8-(substituted)-9-(substituted amino)-6-demethyl-6-deoxytetracyclines35US 5,512,553 AAmerican Cyanamid Company · 1996
- Polymerizable compound, polymerizable composition, polymer, and optically anisotropic body13US 9,207,360 B2Zeno Corporation · 2015