- All sections
- B - Performing operationstransporting
- B22F - Working metallic powdermanufacture of articles from metallic powdermaking metallic powderapparatus or devices specially adapted for metallic powder
- B22F 3/20 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by extruding
Patent holdings for IPC class B22F 3/20
Total number of patents in this class: 337
10-year publication summary
|
42
|
30
|
29
|
13
|
21
|
23
|
22
|
22
|
24
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 20131 |
8 |
| Pukyong National University Industry-University Cooperation Foundation | 371 |
8 |
| Battelle Memorial Institute | 2598 |
7 |
| Grundfos Holding A/S | 597 |
7 |
| PLANSEE SE | 231 |
6 |
| Tundra Composites, LLC | 69 |
6 |
| Hi-Lex Corporation | 375 |
5 |
| Iowa State University Research Foundation, Inc. | 817 |
5 |
| Tecnium, LLC | 10 |
5 |
| Rtx Corporation | 9946 |
5 |
| Siemens AG | 24132 |
4 |
| Lawrence Livermore National Security, LLC | 1961 |
4 |
| Nichia Corporation | 3841 |
4 |
| Central South University | 475 |
4 |
| Katsuyoshi Kondoh | 5 |
4 |
| Kurimoto, Ltd. | 89 |
4 |
| Powdermet, Inc. | 44 |
4 |
| Wenzhou Hongfeng Electrical Alloy Co., Ltd. | 16 |
4 |
| HF Investment Ltd. | 20 |
4 |
| Kolon Plastics, Inc. | 54 |
3 |
| Other owners | 236 |