- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 43/253 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring and to a carbon atom of a ring, other than a six-membered aromatic ring containing hydroxy or O-metal groups
Patent holdings for IPC class C07C 43/253
Total number of patents in this class: 35
10-year publication summary
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1
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2
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5
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6
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2
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3
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1
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1
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1
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3
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TFChem | 37 |
8 |
| Kynan Duke IP, LLC | 8 |
4 |
| Ohio University | 364 |
3 |
| The General Hospital Corporation | 4735 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3466 |
2 |
| LG Chem, Ltd. | 17639 |
1 |
| The Regents of the University of California | 19943 |
1 |
| Changzhou Pharmaceutical Factory Co., Ltd. | 7 |
1 |
| Hybio Pharmaceutical Co., Ltd. | 121 |
1 |
| Japan Tobacco Inc. | 3596 |
1 |
| Laboratoires Cyclopharma | 5 |
1 |
| Rhodia (China) Co., Ltd. | 31 |
1 |
| Rhodia Operations | 1586 |
1 |
| Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd. | 44 |
1 |
| Technische Universitat Graz | 125 |
1 |
| Universite Paul Sabatier Toulouse III | 476 |
1 |
| Montanuniversität Leoben | 54 |
1 |
| Purpana (Beijing) Technologies Co., Ltd. | 12 |
1 |
| Centre National de La Recherche Scientifique (cnrs) | 3106 |
1 |
| Universite Paris-Sud, a corporation of France | 321 |
1 |
| Other owners | 1 |