- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 21/185 - Tetrafluoroethene
Patent holdings for IPC class C07C 21/185
Total number of patents in this class: 49
10-year publication summary
|
4
|
3
|
6
|
3
|
6
|
2
|
0
|
1
|
4
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Agc, Inc. | 4526 |
11 |
| Daikin Industries, Ltd. | 9861 |
7 |
| 3m Innovative Properties Company | 17998 |
6 |
| Honeywell International Inc. | 14019 |
5 |
| Kyoto University | 2781 |
3 |
| E. I. du Pont de Nemours and Company | 4246 |
2 |
| Asahi Glass Company, Limited | 2868 |
2 |
| The Chemours Company Fc, LLC | 1167 |
2 |
| Microwave Chemical Co., Ltd. | 68 |
2 |
| Merck Patent GmbH | 5865 |
1 |
| AGC Si-Tech Co., Ltd. | 65 |
1 |
| Arkema France | 3896 |
1 |
| Mexichem Fluor, Sociedad Anonima de Capital Variable | 207 |
1 |
| Nicca Chemical Co., Ltd. | 131 |
1 |
| SRF Limited | 51 |
1 |
| Nicca Korea Co., Ltd. | 5 |
1 |
| Inoova Material Science Sdn Bhd | 4 |
1 |
| Axoft, Inc., DBA Axoft | 4 |
1 |
| Other owners | 0 |