- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 31/28 - Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups of the platinum group metals, iron group metals or copper
Patent holdings for IPC class B01J 31/28
Total number of patents in this class: 375
10-year publication summary
|
37
|
22
|
24
|
22
|
37
|
22
|
23
|
22
|
21
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The University of Tokyo | 4053 |
8 |
| Kyushu University, National University Corporation | 1625 |
7 |
| Organo Corporation | 436 |
7 |
| Sumitomo Chemical Company, Limited | 8976 |
6 |
| LG Chem, Ltd. | 17632 |
5 |
| Soochow University | 1716 |
5 |
| Rohm and Haas Company | 2847 |
4 |
| Dow Global Technologies LLC | 10143 |
4 |
| Bluestar Silicones France. | 91 |
4 |
| IFP Energies Nouvelles | 2818 |
4 |
| Kurita Water Industries Ltd. | 1150 |
4 |
| Takasago International Corporation | 403 |
4 |
| Nissan Chemical Corporation | 1882 |
4 |
| The Regents of the University of California | 19493 |
3 |
| Nissan Motor Co., Ltd. | 12332 |
3 |
| PPG Industries Ohio, Inc. | 3443 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3730 |
3 |
| The Board of Trustees of the University of Illinois | 2668 |
3 |
| Wako Pure Chemical Industries, Ltd. | 143 |
3 |
| Japan Science and Technology Agency | 1418 |
3 |
| Other owners | 288 |