- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 21/20 - Halogenated butadienes
Patent holdings for IPC class C07C 21/20
Total number of patents in this class: 48
10-year publication summary
|
4
|
2
|
5
|
9
|
5
|
3
|
1
|
1
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daikin Industries, Ltd. | 10527 |
7 |
| The Chemours Company Fc, LLC | 1356 |
5 |
| Kanto Denka Kogyo Co., Ltd. | 144 |
3 |
| Sinochem Lantian Co., Ltd. | 74 |
3 |
| Solvay SA | 943 |
3 |
| Zhejiang Research Institute of Chemical Industry Co., Ltd | 57 |
3 |
| Resonac Corporation | 3739 |
3 |
| Arkema France | 4230 |
2 |
| Arkema Inc. | 1060 |
2 |
| DuPont Performance Elastomers LLC | 37 |
2 |
| Osaka University | 3252 |
2 |
| Sinochem Lantian Electronic Materials (Hangzhou) Co., Ltd. | 2 |
2 |
| Chevron U.S.A. Inc. | 4175 |
1 |
| Showa Denko K.K. | 2054 |
1 |
| Arlanxeo Deutschland GmbH | 278 |
1 |
| Denka Company Limited | 2767 |
1 |
| Mexichem Amanco Holding S.A. de C.V. | 115 |
1 |
| National University Corporation Gunma University | 298 |
1 |
| Pidilite Industries Limited | 38 |
1 |
| Solvay Solexis S.p.A. | 80 |
1 |
| Other owners | 3 |