- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 67/04 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds
Patent holdings for IPC class C07C 67/04
Total number of patents in this class: 112
10-year publication summary
|
6
|
6
|
8
|
4
|
8
|
3
|
6
|
10
|
5
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21308 |
17 |
| 3m Innovative Properties Company | 17481 |
6 |
| Crasus Chemical Inc. | 49 |
4 |
| ExxonMobil Chemical Patents Inc. | 3776 |
3 |
| Evonik Oxeno GmbH & Co. KG | 369 |
3 |
| Wisconsin Alumni Research Foundation | 3902 |
2 |
| Showa Denko K.K. | 2069 |
2 |
| Mitsubishi Chemical Corporation | 4723 |
2 |
| Celanese International Corporation | 910 |
2 |
| Central Glass Company, Limited | 1295 |
2 |
| China Petroleum & Chemical Corporation | 2154 |
2 |
| Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 692 |
2 |
| Emery Oleochemicals GmbH | 110 |
2 |
| Hunan Zhongchuang Chemical Co., Ltd. | 4 |
2 |
| NOVA Chemicals (International) S.A. | 799 |
2 |
| Osaka Organic Chemical Industry Ltd. | 141 |
2 |
| Oxea GmbH | 90 |
2 |
| Research Institute of Petroleum Processing, Sinopec | 362 |
2 |
| University of Virginia Patent Foundation | 1643 |
2 |
| Evolve Lubricants, Inc. | 14 |
2 |
| Other owners | 49 |