- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 220/30 - Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety
Patent holdings for IPC class C08F 220/30
Total number of patents in this class: 732
10-year publication summary
|
56
|
68
|
71
|
59
|
67
|
52
|
56
|
47
|
52
|
36
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29702 |
82 |
| Shin-Etsu Chemical Co., Ltd. | 5708 |
55 |
| LG Chem, Ltd. | 17680 |
54 |
| Nissan Chemical Industries, Ltd. | 1704 |
28 |
| DIC Corporation | 3821 |
20 |
| JSR Corporation | 2532 |
19 |
| Nissan Chemical Corporation | 2077 |
18 |
| 3m Innovative Properties Company | 17770 |
15 |
| Tokyo Ohka Kogyo Co., Ltd. | 1552 |
15 |
| Sumitomo Chemical Company, Limited | 9086 |
13 |
| Align Technology, Inc. | 2149 |
10 |
| Merck Patent GmbH | 5773 |
9 |
| Alcon, Inc. | 5493 |
8 |
| Transitions Optical, Inc. | 252 |
8 |
| Canon Inc. | 40555 |
7 |
| Samsung SDI Co., Ltd. | 8695 |
6 |
| Dongjin Semichem Co., Ltd. | 486 |
6 |
| DuPont Electronic Materials International, LLC | 429 |
6 |
| BASF SE | 21039 |
5 |
| Mitsui Chemicals, Inc. | 3239 |
5 |
| Other owners | 343 |