- All sections
- B - Performing operationstransporting
- B22F - Working metallic powdermanufacture of articles from metallic powdermaking metallic powderapparatus or devices specially adapted for metallic powder
- B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
Patent holdings for IPC class B22F 9/04
Total number of patents in this class: 1441
10-year publication summary
|
134
|
121
|
122
|
118
|
104
|
109
|
108
|
125
|
130
|
98
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TDK Corporation | 6743 |
44 |
| Hitachi Metals, Ltd. | 1957 |
33 |
| Fujian Golden Dragon Rare-earth Co., Ltd. | 64 |
19 |
| Pukyong National University Industry-University Cooperation Foundation | 356 |
17 |
| Shin-Etsu Chemical Co., Ltd. | 5784 |
16 |
| Murata Manufacturing Co., Ltd. | 25001 |
15 |
| The Boeing Company | 20163 |
12 |
| Toshiba Corporation | 12548 |
12 |
| Dowa Electronics Materials Co., Ltd. | 638 |
11 |
| Ningxia Orient Tantalum Industry Co., Ltd. | 52 |
11 |
| Santoku Corporation | 83 |
11 |
| 6K Inc | 149 |
11 |
| Yantai Dongxing Magnetic Materials Inc. | 35 |
11 |
| Noveon Magnetics Inc. | 37 |
11 |
| Sumitomo Electric Industries, Ltd. | 15780 |
10 |
| Proterial, Ltd. | 879 |
10 |
| Toyota Motor Corporation | 33440 |
9 |
| Showa Denko K.K. | 2177 |
9 |
| The United States of America as represented by the Secretary of the Army | 1225 |
9 |
| Purdue Research Foundation | 3726 |
9 |
| Other owners | 1151 |