- All sections
- C - Chemistrymetallurgy
- C01G - Compounds containing metals not covered by subclasses or
- C01G 33/00 - Compounds of niobium
Patent holdings for IPC class C01G 33/00
Total number of patents in this class: 687
10-year publication summary
|
49
|
51
|
45
|
31
|
53
|
55
|
54
|
43
|
57
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toshiba Corporation | 12551 |
36 |
| Mitsui Mining & Smelting Co., Ltd. | 1342 |
20 |
| Panasonic Intellectual Property Management Co., Ltd. | 33845 |
18 |
| National Institute of Advanced Industrial Science and Technology | 3790 |
18 |
| Echion Technologies Limited | 55 |
17 |
| Sumitomo Chemical Company, Limited | 9018 |
16 |
| Toyota Motor Corporation | 35578 |
12 |
| FUJIFILM Corporation | 30479 |
12 |
| Murata Manufacturing Co., Ltd. | 25708 |
12 |
| Agency for Science, Technology and Research | 3722 |
11 |
| The Regents of the University of California | 20694 |
10 |
| TDK Corporation | 6845 |
10 |
| Samsung Electronics Co., Ltd. | 157300 |
9 |
| Seiko Epson Corporation | 20227 |
9 |
| Dowa Electronics Materials Co., Ltd. | 635 |
8 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6186 |
8 |
| DIC Corporation | 3959 |
7 |
| Kubota Corporation | 4385 |
7 |
| Robert Bosch GmbH | 44094 |
6 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11126 |
6 |
| Other owners | 435 |