- All sections
- C - Chemistry; metallurgy
- C07D - Heterocyclic compounds
- C07D 307/89 - Benzo [c] furans; Hydrogenated 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: 190
10-year publication summary
|
19
|
12
|
13
|
11
|
14
|
11
|
8
|
5
|
5
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 19740 |
20 |
| Honshu Chemical Industry Co., Ltd. | 132 |
10 |
| Clariant International Ltd. | 978 |
9 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2362 |
8 |
| SABIC Global Technologies B.V. | 4044 |
8 |
| SHPP Global Technologies B.V. | 1045 |
8 |
| Nexam Chemical AB | 50 |
7 |
| BASF AG | 1258 |
6 |
| ExxonMobil Chemical Patents Inc. | 4286 |
5 |
| Amyris, Inc. | 368 |
4 |
| Manac Inc. | 36 |
4 |
| BASF (China) Co., Ltd. | 755 |
4 |
| Samsung Electronics Co., Ltd. | 131630 |
3 |
| FUJIFILM Corporation | 27102 |
3 |
| Dow Global Technologies LLC | 10147 |
3 |
| Sabic Innovative Plastics IP B.V. | 683 |
3 |
| Mitsubishi Chemical Corporation | 4313 |
3 |
| Ambrx, Inc. | 191 |
3 |
| Nissan Chemical Industries, Ltd. | 1822 |
3 |
| Shinryo Corporation | 70 |
3 |
| Other owners | 73 |