- All sections
- C - Chemistrymetallurgy
- C01G - Compounds containing metals not covered by subclasses or
- C01G 49/00 - Compounds of iron
Patent holdings for IPC class C01G 49/00
Total number of patents in this class: 1391
10-year publication summary
|
95
|
86
|
91
|
92
|
76
|
82
|
87
|
68
|
95
|
64
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Powdertech Co., Ltd. | 138 |
61 |
| Dowa Electronics Materials Co., Ltd. | 632 |
54 |
| FUJIFILM Corporation | 29506 |
50 |
| TDK Corporation | 6796 |
31 |
| Toda Kogyo Corporation | 338 |
29 |
| National Institute of Advanced Industrial Science and Technology | 3797 |
24 |
| LG Chem, Ltd. | 17643 |
22 |
| The University of Tokyo | 4202 |
17 |
| Hitachi Metals, Ltd. | 1976 |
16 |
| Dowa Metals & Mining Co., Ltd. | 42 |
16 |
| JFE Chemical Corporation | 121 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 31756 |
14 |
| Toyota Motor Corporation | 32681 |
12 |
| Toshiba Corporation | 12397 |
12 |
| Murata Manufacturing Co., Ltd. | 24684 |
12 |
| Allumax TTI, LLC | 41 |
11 |
| Harbin Institute of Technology | 443 |
10 |
| Rogers Corporation | 489 |
10 |
| Centre National de La Recherche Scientifique | 10498 |
9 |
| Evonik Degussa GmbH | 1494 |
9 |
| Other owners | 956 |