- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 517/22 - Heterocyclic compounds containing in the condensed system at least one hetero ring having selenium, tellurium, or halogen atoms as ring hetero atoms in which the condensed system contains four or more hetero rings
Patent holdings for IPC class C07D 517/22
Total number of patents in this class: 55
10-year publication summary
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4
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6
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3
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7
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5
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4
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4
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3
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6
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4
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 159473 |
15 |
| Raynergy Tek Inc. | 112 |
5 |
| Sumitomo Chemical Company, Limited | 8992 |
3 |
| Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 5582 |
3 |
| Samsung Display Co., Ltd. | 39229 |
2 |
| Industry-Academic Cooperation Foundation Gyeongsang National University | 637 |
2 |
| Ishihara Sangyo Kaisha, Ltd. | 661 |
2 |
| Osaka University | 3248 |
2 |
| Universal Display Corporation | 2123 |
2 |
| BASF SE | 21334 |
1 |
| LG Chem, Ltd. | 17986 |
1 |
| Merck Patent GmbH | 5751 |
1 |
| FUJIFILM Corporation | 30808 |
1 |
| Shin-Etsu Chemical Co., Ltd. | 6157 |
1 |
| Bionomics Limited | 83 |
1 |
| Cambridge Display Technology Limited | 475 |
1 |
| King Abdullah University of Science & Technology | 23 |
1 |
| Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences | 202 |
1 |
| University Display Corporation | 3 |
1 |
| The University of Tokyo | 4403 |
1 |
| Other owners | 8 |