- 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: 183
10-year publication summary
|
13
|
11
|
13
|
11
|
8
|
5
|
5
|
6
|
10
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21151 |
20 |
| Honshu Chemical Industry Co., Ltd. | 181 |
12 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2403 |
8 |
| SABIC Global Technologies B.V. | 4466 |
8 |
| SHPP Global Technologies B.V. | 1092 |
8 |
| Clariant International Ltd. | 906 |
7 |
| Nexam Chemical AB | 55 |
7 |
| Nissan Chemical Corporation | 2134 |
6 |
| ExxonMobil Chemical Patents Inc. | 3885 |
5 |
| FUJIFILM Corporation | 30106 |
4 |
| Amyris, Inc. | 371 |
4 |
| BASF (China) Co., Ltd. | 867 |
4 |
| Samsung Electronics Co., Ltd. | 152016 |
3 |
| Dow Global Technologies LLC | 10720 |
3 |
| Sabic Innovative Plastics IP B.V. | 671 |
3 |
| Manac Inc. | 27 |
3 |
| Nissan Chemical Industries, Ltd. | 1680 |
3 |
| Transitions Optical, Inc. | 248 |
3 |
| Industrial Technology Research Institute | 5072 |
2 |
| Arrowhead Pharmaceuticals, Inc. | 335 |
2 |
| Other owners | 68 |