- 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: 1165
10-year publication summary
|
85
|
94
|
84
|
98
|
74
|
66
|
60
|
44
|
38
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13720 |
46 |
| Umicore AG & Co. KG | 861 |
36 |
| Asahi Kasei Kabushiki Kaisha | 2728 |
24 |
| Uop LLC | 4258 |
22 |
| Johnson Matthey Public Limited Company | 1770 |
22 |
| Toshiba Materials Co., Ltd. | 629 |
22 |
| Asahi Kasei Chemicals Corporation | 607 |
19 |
| Mitsubishi Heavy Industries, Ltd. | 8936 |
16 |
| IFP Energies Nouvelles | 2999 |
16 |
| Nitto Denko Corporation | 8376 |
15 |
| SABIC Global Technologies B.V. | 4428 |
14 |
| Aramco Services Company | 4129 |
13 |
| Mitsubishi Power, Ltd. | 1812 |
13 |
| Shell USA, Inc. | 1267 |
13 |
| Chevron U.S.A. Inc. | 4015 |
12 |
| Showa Denko K.K. | 2148 |
12 |
| BASF Mobile Emissions Catalysts LLC | 423 |
11 |
| LG Chem, Ltd. | 17714 |
10 |
| BASF Corporation | 1703 |
10 |
| Sharp Corporation | 10343 |
10 |
| Other owners | 809 |