- 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: 576
10-year publication summary
|
29
|
47
|
37
|
55
|
52
|
28
|
51
|
30
|
31
|
32
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Crystaphase Products, Inc. | 62 |
11 |
| Scientific Design Company, Inc. | 114 |
11 |
| SABIC Global Technologies B.V. | 4633 |
10 |
| Mitsubishi Chemical UK Limited | 85 |
10 |
| LG Chem, Ltd. | 17997 |
9 |
| Mitsubishi Chemical Corporation | 4777 |
8 |
| China Petroleum & Chemical Corporation | 2190 |
8 |
| Neste Oyj | 793 |
8 |
| BASF SE | 21334 |
7 |
| Johnson Matthey Public Limited Company | 1769 |
7 |
| Petroleo Brasileiro S.A. - Petrobras | 982 |
7 |
| Mitsui Chemicals, Inc. | 3288 |
6 |
| Mitsubishi Gas Chemical Company, Inc. | 3663 |
6 |
| Saudi Arabian Oil Company | 14416 |
6 |
| Topsoe A/S | 1082 |
6 |
| ExxonMobil Research And Engineering Company | 2386 |
5 |
| Arkema France | 4237 |
5 |
| Lummus Technology LLC | 501 |
5 |
| Honeywell International Inc. | 12761 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 9271 |
4 |
| Other owners | 433 |