- All sections
- C - Chemistry; metallurgy
- C08L - Compositions of macromolecular compounds
- C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
Patent holdings for IPC class C08L 101/16
Total number of patents in this class: 1109
10-year publication summary
|
61
|
40
|
46
|
34
|
24
|
50
|
64
|
67
|
76
|
32
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kaneka Corporation | 4445 |
77 |
| Toray Industries, Inc. | 6652 |
55 |
| Kureha Corporation | 1026 |
41 |
| Teijin Limited | 1216 |
37 |
| Kao Corporation | 4843 |
29 |
| Unitika Ltd. | 441 |
25 |
| NEC Corporation | 32703 |
22 |
| Mitsui Chemicals, Inc. | 3134 |
22 |
| Mitsubishi Chemical Corporation | 4313 |
20 |
| Musashino Chemical Laboratory, Ltd. | 23 |
12 |
| Nitto Denko Corporation | 7879 |
11 |
| DIC Corporation | 3597 |
11 |
| THK Co., Ltd. | 1206 |
11 |
| Toyo Seikan Group Holdings, Ltd. | 765 |
11 |
| Toyobo Co., Ltd. | 2286 |
10 |
| Ricoh Company, Ltd. | 13266 |
8 |
| Mitsubishi Plastics, Inc. | 347 |
8 |
| Panasonic Corporation | 20786 |
7 |
| Sumitomo Chemical Company, Limited | 8808 |
7 |
| Kuraray Co., Ltd. | 3392 |
7 |
| Other owners | 678 |