- All sections
- C - Chemistry; metallurgy
- C08L - Compositions of macromolecular compounds
- C08L 79/08 - Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
Patent holdings for IPC class C08L 79/08
Total number of patents in this class: 2707
10-year publication summary
|
147
|
168
|
162
|
246
|
265
|
296
|
257
|
215
|
211
|
57
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17205 |
146 |
| Toray Industries, Inc. | 6652 |
91 |
| Nissan Chemical Industries, Ltd. | 1822 |
88 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
81 |
| SHPP Global Technologies B.V. | 1045 |
81 |
| FUJIFILM Corporation | 27102 |
71 |
| Kaneka Corporation | 4445 |
62 |
| SABIC Global Technologies B.V. | 4044 |
61 |
| Nissan Chemical Corporation | 1725 |
60 |
| PI Advanced Materials Co., Ltd. | 157 |
60 |
| Sabic Innovative Plastics IP B.V. | 683 |
53 |
| SKCKOLONPI Inc. | 70 |
52 |
| Sumitomo Chemical Company, Limited | 8808 |
43 |
| Kolon Industries, Inc. | 1506 |
37 |
| Ube Industries, Ltd. | 921 |
35 |
| E. I. du Pont de Nemours and Company | 4345 |
32 |
| Hitachi Chemical Company, Ltd. | 2455 |
28 |
| Solvay Specialty Polymers USA, LLC | 521 |
25 |
| JSR Corporation | 2476 |
23 |
| Samsung Electronics Co., Ltd. | 131630 |
22 |
| Other owners | 1556 |