- 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: 545
10-year publication summary
|
42
|
29
|
47
|
37
|
53
|
52
|
28
|
50
|
30
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Chemical UK Limited | 104 |
12 |
| Scientific Design Company, Inc. | 115 |
11 |
| SABIC Global Technologies B.V. | 4344 |
10 |
| Mitsubishi Chemical Corporation | 4514 |
9 |
| Crystaphase Products, Inc. | 55 |
9 |
| Neste Oyj | 792 |
9 |
| LG Chem, Ltd. | 17638 |
8 |
| Johnson Matthey Public Limited Company | 1858 |
7 |
| BASF SE | 20915 |
6 |
| ExxonMobil Research And Engineering Company | 2572 |
6 |
| Mitsui Chemicals, Inc. | 3219 |
6 |
| Mitsubishi Gas Chemical Company, Inc. | 3465 |
6 |
| Petroleo Brasileiro S.A. - Petrobras | 849 |
6 |
| Honeywell International Inc. | 13553 |
5 |
| Arkema France | 4154 |
5 |
| Lummus Technology LLC | 441 |
5 |
| Topsoe A/S | 894 |
5 |
| BASF Corporation | 1717 |
4 |
| China Petroleum & Chemical Corporation | 1908 |
4 |
| Clariant International Ltd. | 935 |
4 |
| Other owners | 408 |