- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 23/889 - Manganese, technetium or rhenium
Patent holdings for IPC class B01J 23/889
Total number of patents in this class: 803
10-year publication summary
|
70
|
60
|
75
|
57
|
55
|
45
|
41
|
49
|
42
|
28
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BP p.l.c. | 521 |
42 |
| Shell Internationale Research Maatschappij B.V. | 3546 |
18 |
| Clariant International Ltd. | 931 |
16 |
| BASF SE | 20967 |
15 |
| BASF Corporation | 1722 |
15 |
| SABIC Global Technologies B.V. | 4352 |
11 |
| Murata Manufacturing Co., Ltd. | 24650 |
10 |
| Clean Diesel Technologies, Inc. | 66 |
10 |
| Johnson Matthey Public Limited Company | 1867 |
10 |
| Sasol Technology (Proprietary) Limited | 221 |
9 |
| Centre National de La Recherche Scientifique | 10476 |
8 |
| NGK Insulators, Ltd. | 4982 |
8 |
| Saudi Basic Industries Corporation | 552 |
8 |
| Kyoto University | 2811 |
8 |
| Mitsui Mining & Smelting Co., Ltd. | 1497 |
8 |
| LG Chem, Ltd. | 17636 |
7 |
| ExxonMobil Chemical Patents Inc. | 3977 |
7 |
| China Petroleum & Chemical Corporation | 1905 |
7 |
| IFP Energies Nouvelles | 2942 |
7 |
| Siemens AG | 24436 |
6 |
| Other owners | 573 |