- All sections
- C - Chemistrymetallurgy
- C12N - Microorganisms or enzymescompositions thereofpropagating, preserving, or maintaining microorganismsmutation or genetic engineeringculture media
- C12N 15/02 - Preparation of hybrid cells by fusion of two or more cells, e.g. protoplast fusion
Patent holdings for IPC class C12N 15/02
Total number of patents in this class: 335
10-year publication summary
|
19
|
26
|
22
|
12
|
7
|
9
|
9
|
13
|
9
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daiichi Sankyo Company, Limited | 1875 |
13 |
| Kyowa Hakko Kirin Co., Ltd. | 280 |
8 |
| National University Corporation Hokkaido University | 1348 |
8 |
| The University of Tokyo | 4224 |
8 |
| Chugai Seiyaku Kabushiki Kaisha | 1372 |
7 |
| Osaka University | 3394 |
7 |
| Sekisui Medical Co., Ltd. | 673 |
7 |
| CHO Plus, Inc. | 14 |
7 |
| Toray Industries, Inc. | 7002 |
6 |
| Fujirebio Inc. | 193 |
6 |
| Riken | 1690 |
6 |
| Children's Hospital Medical Center | 727 |
5 |
| National Cancer Center | 422 |
5 |
| Order-made Medical Research Inc. | 15 |
5 |
| Santen Pharmaceutical Co., Ltd. | 601 |
5 |
| Perseus Proteomics Inc. | 61 |
4 |
| Recombinetics, Inc. | 49 |
4 |
| The Board of Regents of the University of Texas System | 2221 |
4 |
| Astellas Pharma Inc. | 1088 |
3 |
| Bio Matrix Research Inc. | 13 |
3 |
| Other owners | 214 |