- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 21/18 - Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds containing fluorine
Patent holdings for IPC class C07C 21/18
Total number of patents in this class: 1272
10-year publication summary
|
84
|
88
|
106
|
111
|
103
|
78
|
54
|
52
|
52
|
65
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Honeywell International Inc. | 13562 |
211 |
| Arkema France | 4171 |
171 |
| The Chemours Company Fc, LLC | 1259 |
170 |
| Daikin Industries, Ltd. | 10142 |
149 |
| Agc, Inc. | 4979 |
100 |
| Central Glass Company, Limited | 1274 |
59 |
| E. I. du Pont de Nemours and Company | 3922 |
50 |
| Asahi Glass Company, Limited | 2741 |
48 |
| Mexichem Amanco Holding S.A. de C.V. | 124 |
23 |
| 3m Innovative Properties Company | 17752 |
20 |
| Arkema Inc. | 1066 |
20 |
| Mexichem Fluor, Sociedad Anonima de Capital Variable | 204 |
18 |
| Zhejiang Quhua Fluor-Chemistry Co., Ltd. | 39 |
16 |
| Sinochem Lantian Co., Ltd. | 72 |
12 |
| Xi'an Modern Chemistry Research Institute | 28 |
11 |
| Mexichem UK Limited | 73 |
10 |
| Kureha Corporation | 1041 |
9 |
| Showa Denko K.K. | 2185 |
8 |
| Unimatec Co., Ltd. | 237 |
7 |
| Resonac Corporation | 2963 |
7 |
| Other owners | 153 |