- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 21/185 - Tetrafluoroethene
Patent holdings for IPC class C07C 21/185
Total number of patents in this class: 43
10-year publication summary
|
2
|
4
|
3
|
6
|
3
|
6
|
2
|
0
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Agc, Inc. | 4029 |
7 |
| 3m Innovative Properties Company | 18406 |
6 |
| Daikin Industries, Ltd. | 9495 |
6 |
| Honeywell International Inc. | 13799 |
5 |
| Kyoto University | 2732 |
3 |
| E. I. du Pont de Nemours and Company | 4345 |
2 |
| Asahi Glass Company, Limited | 2985 |
2 |
| The Chemours Company Fc, LLC | 1107 |
2 |
| Merck Patent GmbH | 5909 |
1 |
| AGC Si-Tech Co., Ltd. | 49 |
1 |
| Arkema France | 3790 |
1 |
| Mexichem Fluor, Sociedad Anonima de Capital Variable | 200 |
1 |
| Microwave Chemical Co., Ltd. | 63 |
1 |
| Nicca Chemical Co., Ltd. | 121 |
1 |
| SRF Limited | 51 |
1 |
| Nicca Korea Co., Ltd. | 5 |
1 |
| E.I. DuPont de Nemours and Company | 468 |
1 |
| Inoova Material Science Sdn Bhd | 4 |
1 |
| Other owners | 0 |