- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 43/23 - Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring containing hydroxy or O-metal groups
Patent holdings for IPC class C07C 43/23
Total number of patents in this class: 770
10-year publication summary
|
62
|
56
|
62
|
51
|
56
|
45
|
32
|
45
|
39
|
33
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3481 |
30 |
| Kaneka Corporation | 4561 |
21 |
| The University of British Columbia | 1504 |
20 |
| British Columbia Cancer Agency Branch | 192 |
17 |
| Taoka Chemical Co., Ltd. | 57 |
16 |
| Ajinomoto Co., Inc. | 2290 |
12 |
| Shin-Etsu Chemical Co., Ltd. | 5680 |
11 |
| FUJIFILM Corporation | 29506 |
10 |
| Rhodia Operations | 1586 |
10 |
| Unigen, Inc. | 111 |
9 |
| DIC Corporation | 3810 |
8 |
| Givaudan SA | 1893 |
8 |
| Takasago International Corporation | 407 |
8 |
| Teijin Limited | 1250 |
8 |
| Univation Technologies, LLC | 638 |
8 |
| Honshu Chemical Industry Co., Ltd. | 169 |
7 |
| Tokuyama Corporation | 1403 |
7 |
| Yissum Research Development Company of The Hebrew University of Jerusalem Ltd. | 1347 |
7 |
| Sumitomo Chemical Company, Limited | 9051 |
6 |
| Firmenich SA | 1688 |
6 |
| Other owners | 541 |