- 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: 180
10-year publication summary
12
|
13
|
11
|
14
|
11
|
8
|
5
|
5
|
6
|
3
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
BASF SE | 20892 |
20 |
Honshu Chemical Industry Co., Ltd. | 164 |
10 |
Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2375 |
8 |
SABIC Global Technologies B.V. | 4326 |
8 |
SHPP Global Technologies B.V. | 1084 |
8 |
Clariant International Ltd. | 940 |
7 |
Nexam Chemical AB | 57 |
7 |
ExxonMobil Chemical Patents Inc. | 4012 |
5 |
FUJIFILM Corporation | 29295 |
4 |
Amyris, Inc. | 371 |
4 |
Manac Inc. | 29 |
4 |
BASF (China) Co., Ltd. | 835 |
4 |
Samsung Electronics Co., Ltd. | 145025 |
3 |
Dow Global Technologies LLC | 10401 |
3 |
Sabic Innovative Plastics IP B.V. | 681 |
3 |
Ambrx, Inc. | 181 |
3 |
Mitsubishi Gas Chemical Company, Inc. | 3459 |
3 |
Nissan Chemical Industries, Ltd. | 1721 |
3 |
Transitions Optical, Inc. | 256 |
3 |
Industrial Technology Research Institute | 5086 |
2 |
Other owners | 68 |