- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 47/38 - Cellulose; Derivatives thereof
Patent holdings for IPC class A61K 47/38
Total number of patents in this class: 5543
10-year publication summary
|
424
|
401
|
502
|
510
|
606
|
626
|
673
|
611
|
547
|
168
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Abbvie Inc. | 1808 |
53 |
| Daiichi Sankyo Company, Limited | 1829 |
53 |
| Dow Global Technologies LLC | 10147 |
43 |
| LTS Lohmann Therapie-Systeme AG | 691 |
43 |
| Astellas Pharma Inc. | 1145 |
31 |
| Otsuka Pharmaceutical Co., Ltd. | 1426 |
31 |
| Asahi Kasei Chemicals Corporation | 809 |
30 |
| Allergan, Inc. | 2600 |
28 |
| Daicel Corporation | 2128 |
28 |
| Chugai Seiyaku Kabushiki Kaisha | 1259 |
27 |
| Azurity Pharmaceuticals, Inc. | 147 |
27 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
26 |
| Jiangsu Hengrui Medicine Co., Ltd. | 780 |
26 |
| Novartis AG | 11238 |
24 |
| Shionogi & Co., Ltd. | 914 |
24 |
| Takeda Pharmaceutical Company Limited | 2961 |
23 |
| Kowa Company, Ltd. | 1172 |
23 |
| Nicoventures Trading Limited | 2898 |
22 |
| UPM-Kymmene Corporation | 868 |
21 |
| FUJIFILM Corporation | 27102 |
20 |
| Other owners | 4940 |