- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 23/648 - Vanadium, niobium or tantalum
Patent holdings for IPC class B01J 23/648
Total number of patents in this class: 246
10-year publication summary
|
30
|
25
|
20
|
24
|
11
|
12
|
19
|
12
|
15
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Johnson Matthey Public Limited Company | 1852 |
11 |
| Topsoe A/S | 732 |
10 |
| Johnson Matthey Hydrogen Technologies Limited | 83 |
10 |
| Celanese International Corporation | 879 |
8 |
| Mitsui Mining & Smelting Co., Ltd. | 1373 |
7 |
| Rohm and Haas Company | 2805 |
6 |
| Umicore AG & Co. KG | 867 |
6 |
| Haldor Topsøe A/S | 698 |
6 |
| Cataler Corporation | 533 |
5 |
| Osaka Gas Co., Ltd. | 312 |
5 |
| BASF SE | 19740 |
4 |
| Toyota Motor Corporation | 28582 |
4 |
| BASF Corporation | 2039 |
4 |
| Dow Global Technologies LLC | 10147 |
4 |
| Osaka University | 3143 |
4 |
| University of Yamanashi | 270 |
4 |
| Purdue Research Foundation | 3277 |
3 |
| Council of Scientific & Industrial Research | 1397 |
3 |
| N.E. Chemcat Corporation | 193 |
3 |
| Novamont S.p.A. | 354 |
3 |
| Other owners | 136 |