- All sections
- C - Chemistrymetallurgy
- 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: 558
10-year publication summary
|
62
|
36
|
30
|
23
|
39
|
35
|
34
|
25
|
32
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3461 |
46 |
| BASF SE | 20912 |
40 |
| Arkema France | 4102 |
29 |
| INVISTA Technologies S.a.r.l. | 415 |
27 |
| DSM IP Assets B.V. | 5595 |
16 |
| INVISTA North America S.a.r.l. | 176 |
14 |
| Cibt America Inc. | 99 |
14 |
| Cathay Biotech Inc. | 97 |
14 |
| Ascend Performance Materials Operations LLC | 272 |
12 |
| Rhodia Operations | 1586 |
12 |
| Unitika Ltd. | 451 |
10 |
| Envalior B.V. | 82 |
10 |
| Kingfa SCI & Tech Co. Ltd. | 631 |
9 |
| Polytechnyl, SAS | 22 |
9 |
| INV Nylon Polymers Americas, LLC | 26 |
9 |
| Iowa State University Research Foundation, Inc. | 769 |
8 |
| Toray Industries, Inc. | 6935 |
7 |
| INVISTA Textiles (U.K.) Limited | 256 |
7 |
| Zhuhai Vanteque Specialty Engineering Plastics Co., Ltd. | 59 |
7 |
| DuPont Safety & Construction, Inc. | 684 |
7 |
| Other owners | 251 |