- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 23/30 - Tungsten
Patent holdings for IPC class B01J 23/30
Total number of patents in this class: 1180
10-year publication summary
|
89
|
96
|
91
|
101
|
78
|
69
|
61
|
45
|
40
|
27
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 14369 |
46 |
| Umicore AG & Co. KG | 848 |
33 |
| Asahi Kasei Kabushiki Kaisha | 2860 |
24 |
| Uop LLC | 4407 |
22 |
| Johnson Matthey Public Limited Company | 1764 |
22 |
| Toshiba Materials Co., Ltd. | 560 |
20 |
| Asahi Kasei Chemicals Corporation | 542 |
18 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
17 |
| IFP Energies Nouvelles | 3116 |
16 |
| Nitto Denko Corporation | 8589 |
15 |
| Shell USA, Inc. | 1351 |
15 |
| SABIC Global Technologies B.V. | 4625 |
14 |
| Aramco Services Company | 4190 |
13 |
| Mitsubishi Power, Ltd. | 1836 |
13 |
| Chevron U.S.A. Inc. | 4170 |
12 |
| Showa Denko K.K. | 2059 |
12 |
| BASF Mobile Emissions Catalysts LLC | 426 |
11 |
| LG Chem, Ltd. | 17970 |
10 |
| Centre National de La Recherche Scientifique | 11111 |
10 |
| BASF Corporation | 1681 |
10 |
| Other owners | 827 |