- 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: 1323
10-year publication summary
|
89
|
106
|
113
|
108
|
83
|
54
|
56
|
58
|
86
|
46
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Chemours Company Fc, LLC | 1341 |
191 |
| Arkema France | 4242 |
173 |
| Daikin Industries, Ltd. | 10499 |
162 |
| Honeywell International Inc. | 12778 |
112 |
| Agc, Inc. | 5524 |
111 |
| Solstice Advanced Materials US, Inc. | 961 |
106 |
| Central Glass Company, Limited | 1293 |
58 |
| Asahi Glass Company, Limited | 2622 |
48 |
| E. I. du Pont de Nemours and Company | 3534 |
42 |
| Mexichem Amanco Holding S.A. de C.V. | 115 |
21 |
| 3m Innovative Properties Company | 17478 |
20 |
| Arkema Inc. | 1061 |
19 |
| Mexichem Fluor, Sociedad Anonima de Capital Variable | 204 |
18 |
| Zhejiang Quhua Fluor-Chemistry Co., Ltd. | 41 |
17 |
| Sinochem Lantian Co., Ltd. | 74 |
12 |
| Xi'an Modern Chemistry Research Institute | 28 |
11 |
| Mexichem UK Limited | 76 |
10 |
| Kureha Corporation | 1059 |
9 |
| Showa Denko K.K. | 2069 |
7 |
| Unimatec Co., Ltd. | 238 |
7 |
| Other owners | 169 |