- All sections
- C - Chemistry; metallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 4/42 - Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
Patent holdings for IPC class C08F 4/42
Total number of patents in this class: 135
10-year publication summary
|
6
|
8
|
8
|
13
|
3
|
5
|
3
|
3
|
9
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17205 |
18 |
| Chevron Phillips Chemical Company LP | 1779 |
8 |
| Bridgestone Corporation | 7067 |
6 |
| Sumitomo Chemical Company, Limited | 8808 |
4 |
| Mitsui Chemicals, Inc. | 3134 |
4 |
| Otsuka Chemical Co., Ltd. | 286 |
4 |
| W.R. Grace & Co.-conn. | 372 |
4 |
| ExxonMobil Chemical Patents Inc. | 4286 |
3 |
| Saudi Basic Industries Corporation | 625 |
3 |
| Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation | 297 |
3 |
| Borealis AG | 2558 |
3 |
| Braskem America, Inc. | 177 |
3 |
| China Petroleum & Chemical Corporation | 1623 |
3 |
| FINA Technology, Inc. | 571 |
3 |
| W. R. Grace & Co.-Conn. | 299 |
3 |
| Agc, Inc. | 4029 |
3 |
| Formosa Plastics Corporation, U.S.A. | 61 |
3 |
| Janssen Pharmaceutica N.V. | 3839 |
2 |
| Agency for Science, Technology and Research | 3512 |
2 |
| INEOS Sales (UK) Limited | 49 |
2 |
| Other owners | 51 |