- All sections
- C - Chemistry; metallurgy
- 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: 1187
10-year publication summary
|
55
|
85
|
89
|
106
|
113
|
107
|
82
|
53
|
51
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Honeywell International Inc. | 13799 |
212 |
| Arkema France | 3790 |
168 |
| Daikin Industries, Ltd. | 9495 |
143 |
| The Chemours Company Fc, LLC | 1107 |
119 |
| Agc, Inc. | 4029 |
79 |
| E. I. du Pont de Nemours and Company | 4345 |
62 |
| Central Glass Company, Limited | 1244 |
58 |
| Asahi Glass Company, Limited | 2985 |
48 |
| 3m Innovative Properties Company | 18406 |
23 |
| Mexichem Amanco Holding S.A. de C.V. | 126 |
22 |
| Arkema Inc. | 1075 |
19 |
| Mexichem Fluor, Sociedad Anonima de Capital Variable | 200 |
18 |
| Zhejiang Quhua Fluor-Chemistry Co., Ltd. | 36 |
14 |
| Xi'an Modern Chemistry Research Institute | 26 |
11 |
| Sinochem Lantian Co., Ltd. | 55 |
10 |
| Mexichem UK Limited | 66 |
10 |
| Kureha Corporation | 1026 |
9 |
| Showa Denko K.K. | 2539 |
8 |
| Unimatec Co., Ltd. | 216 |
7 |
| Resonac Corporation | 2233 |
7 |
| Other owners | 140 |