- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 307/89 - Benzo [c] furansHydrogenated benzo [c] furans with two oxygen atoms directly attached in positions 1 and 3
Patent holdings for IPC class C07D 307/89
Total number of patents in this class: 178
10-year publication summary
|
13
|
11
|
14
|
11
|
8
|
5
|
5
|
7
|
10
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21320 |
15 |
| Honshu Chemical Industry Co., Ltd. | 193 |
12 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2448 |
8 |
| SABIC Global Technologies B.V. | 4614 |
8 |
| SHPP Global Technologies B.V. | 1105 |
8 |
| Clariant International Ltd. | 892 |
7 |
| Nexam Chemical AB | 57 |
7 |
| Nissan Chemical Corporation | 2252 |
6 |
| ExxonMobil Chemical Patents Inc. | 3766 |
5 |
| FUJIFILM Corporation | 30628 |
4 |
| Amyris, Inc. | 371 |
4 |
| BASF (China) Co., Ltd. | 890 |
4 |
| Samsung Electronics Co., Ltd. | 158605 |
3 |
| Dow Global Technologies LLC | 11008 |
3 |
| Sabic Innovative Plastics IP B.V. | 583 |
3 |
| Manac Inc. | 27 |
3 |
| Nan Ya Plastics Corporation | 503 |
3 |
| Nissan Chemical Industries, Ltd. | 1636 |
3 |
| Transitions Optical, Inc. | 233 |
3 |
| Industrial Technology Research Institute | 5198 |
2 |
| Other owners | 67 |