- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 17/21 - Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms with simultaneous increase of the number of halogen atoms
Patent holdings for IPC class C07C 17/21
Total number of patents in this class: 75
10-year publication summary
|
3
|
6
|
7
|
6
|
4
|
2
|
3
|
4
|
2
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Honeywell International Inc. | 14031 |
16 |
| Arkema France | 3898 |
11 |
| The Chemours Company Fc, LLC | 1164 |
9 |
| E. I. du Pont de Nemours and Company | 4247 |
8 |
| Mexichem Amanco Holding S.A. de C.V. | 126 |
6 |
| Daikin Industries, Ltd. | 9860 |
4 |
| INEOS Fluor Holdings Limited | 21 |
3 |
| Mexichem Fluor, Sociedad Anonima de Capital Variable | 206 |
3 |
| Xi'an Modern Chemistry Research Institute | 27 |
2 |
| Zeon Corporation | 4006 |
2 |
| Beijing Yuji Science & Technology Co., Ltd. | 3 |
2 |
| Bayer Intellectual Property GmbH | 2566 |
1 |
| Bayer Cropscience AG | 2135 |
1 |
| Showa Denko K.K. | 2326 |
1 |
| Central Glass Company, Limited | 1249 |
1 |
| Gujarat Fluorochemicals Limited | 28 |
1 |
| Zhejiang Quhua Fluor-Chemistry Co., Ltd. | 36 |
1 |
| Mexichem UK Limited | 70 |
1 |
| Resonac Corporation | 2471 |
1 |
| Fluorinnovation L.l.c-fz | 5 |
1 |
| Other owners | 0 |