- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 23/04 - Alkali metals
Patent holdings for IPC class B01J 23/04
Total number of patents in this class: 523
10-year publication summary
|
42
|
29
|
47
|
37
|
54
|
52
|
26
|
48
|
28
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Chemical UK Limited | 105 |
13 |
| Scientific Design Company, Inc. | 114 |
11 |
| SABIC Global Technologies B.V. | 4193 |
10 |
| Mitsubishi Chemical Corporation | 4438 |
9 |
| Crystaphase Products, Inc. | 55 |
9 |
| Neste Oyj | 725 |
9 |
| Petroleo Brasileiro S.A. - Petrobras | 779 |
7 |
| LG Chem, Ltd. | 17632 |
6 |
| ExxonMobil Research And Engineering Company | 2675 |
6 |
| Johnson Matthey Public Limited Company | 1850 |
6 |
| Mitsubishi Gas Chemical Company, Inc. | 3343 |
6 |
| BASF SE | 20387 |
5 |
| Honeywell International Inc. | 14007 |
5 |
| Mitsui Chemicals, Inc. | 3187 |
5 |
| Arkema France | 3887 |
5 |
| Commonwealth Scientific and Industrial Research Organisation | 1677 |
5 |
| Lummus Technology LLC | 391 |
5 |
| Topsoe A/S | 826 |
5 |
| BASF Corporation | 1822 |
4 |
| China Petroleum & Chemical Corporation | 1774 |
4 |
| Other owners | 388 |