- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 23/04 - Alkali metals
Patent holdings for IPC class B01J 23/04
Total number of patents in this class: 546
10-year publication summary
|
38
|
28
|
46
|
36
|
51
|
49
|
26
|
48
|
30
|
27
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Chemical UK Limited | 103 |
13 |
| Scientific Design Company, Inc. | 117 |
11 |
| SABIC Global Technologies B.V. | 4403 |
10 |
| LG Chem, Ltd. | 17679 |
9 |
| Mitsubishi Chemical Corporation | 4606 |
9 |
| Crystaphase Products, Inc. | 57 |
9 |
| Neste Oyj | 782 |
9 |
| Johnson Matthey Public Limited Company | 1771 |
7 |
| Petroleo Brasileiro S.A. - Petrobras | 884 |
7 |
| BASF SE | 21087 |
6 |
| ExxonMobil Research And Engineering Company | 2537 |
6 |
| Mitsui Chemicals, Inc. | 3230 |
6 |
| Mitsubishi Gas Chemical Company, Inc. | 3499 |
6 |
| Honeywell International Inc. | 13568 |
5 |
| Arkema France | 4173 |
5 |
| Lummus Technology LLC | 456 |
5 |
| Topsoe A/S | 957 |
5 |
| BASF Corporation | 1708 |
4 |
| China Petroleum & Chemical Corporation | 1950 |
4 |
| IFP Energies Nouvelles | 2980 |
4 |
| Other owners | 406 |