- 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: 698
10-year publication summary
|
49
|
51
|
45
|
31
|
53
|
55
|
54
|
43
|
57
|
30
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toshiba Corporation | 12726 |
36 |
| Mitsui Mining & Smelting Co., Ltd. | 1064 |
19 |
| Panasonic Intellectual Property Management Co., Ltd. | 34471 |
18 |
| National Institute of Advanced Industrial Science and Technology | 3790 |
18 |
| Echion Technologies Limited | 56 |
17 |
| Sumitomo Chemical Company, Limited | 8965 |
15 |
| Toyota Motor Corporation | 36159 |
12 |
| FUJIFILM Corporation | 30689 |
12 |
| Murata Manufacturing Co., Ltd. | 25917 |
12 |
| Agency for Science, Technology and Research | 3765 |
11 |
| The Regents of the University of California | 20902 |
10 |
| TDK Corporation | 6992 |
10 |
| Samsung Electronics Co., Ltd. | 159029 |
9 |
| Seiko Epson Corporation | 20446 |
9 |
| Dowa Electronics Materials Co., Ltd. | 635 |
8 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6170 |
8 |
| DIC Corporation | 3995 |
7 |
| Kubota Corporation | 4420 |
7 |
| Robert Bosch GmbH | 44327 |
6 |
| Denso Corporation | 25746 |
6 |
| Other owners | 448 |