- All sections
- B - Performing operationstransporting
- B22F - Working metallic powdermanufacture of articles from metallic powdermaking metallic powderapparatus or devices specially adapted for metallic powder
- B22F 3/24 - After-treatment of workpieces or articles
Patent holdings for IPC class B22F 3/24
Total number of patents in this class: 2223
10-year publication summary
|
256
|
260
|
251
|
212
|
180
|
137
|
132
|
137
|
93
|
46
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 1898 |
72 |
| Rtx Corporation | 10102 |
51 |
| Shin-Etsu Chemical Co., Ltd. | 6096 |
50 |
| Sumitomo Electric Sintered Alloy, Ltd. | 245 |
41 |
| Sumitomo Electric Industries, Ltd. | 16331 |
40 |
| TDK Corporation | 6858 |
37 |
| Seurat Technologies, Inc. | 175 |
36 |
| General Electric Company | 13899 |
35 |
| Proterial, Ltd. | 935 |
33 |
| NTN Corporation | 4914 |
30 |
| GE Infrastructure Technology, LLC | 6171 |
28 |
| Safran Aircraft Engines | 6694 |
25 |
| The Boeing Company | 20160 |
22 |
| Panasonic Intellectual Property Management Co., Ltd. | 33997 |
22 |
| Toyota Motor Corporation | 35772 |
19 |
| Toshiba Corporation | 12560 |
16 |
| Siemens AG | 24029 |
15 |
| GKN Sinter Metals, LLC | 109 |
15 |
| Element Six (UK) Limited | 236 |
15 |
| Hamilton Sundstrand Corporation | 5015 |
14 |
| Other owners | 1607 |