- All sections
- C - Chemistry; metallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 69/28 - Preparatory processes
Patent holdings for IPC class C08G 69/28
Total number of patents in this class: 520
10-year publication summary
|
41
|
62
|
36
|
30
|
23
|
39
|
35
|
34
|
25
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
44 |
| BASF SE | 19740 |
40 |
| Arkema France | 3790 |
27 |
| INVISTA Technologies S.a.r.l. | 450 |
27 |
| DSM IP Assets B.V. | 5856 |
26 |
| INVISTA North America S.a.r.l. | 182 |
14 |
| Rhodia Operations | 1645 |
12 |
| Polytechnyl, SAS | 30 |
12 |
| Cibt America Inc. | 83 |
11 |
| Cathay Biotech Inc. | 81 |
11 |
| Ascend Performance Materials Operations LLC | 260 |
10 |
| Unitika Ltd. | 441 |
9 |
| INV Nylon Polymers Americas, LLC | 26 |
8 |
| E. I. du Pont de Nemours and Company | 4345 |
7 |
| Toray Industries, Inc. | 6652 |
7 |
| DuPont Safety & Construction, Inc. | 676 |
7 |
| Iowa State University Research Foundation, Inc. | 685 |
6 |
| INVISTA Textiles (U.K.) Limited | 253 |
6 |
| Kingfa SCI & Tech Co. Ltd. | 509 |
5 |
| Zhejiang Nhu Special Materials Co., Ltd | 29 |
5 |
| Other owners | 226 |