- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 3/28 - Investigating ductility, e.g. suitability of sheet metal for deep-drawing or spinning
Patent holdings for IPC class G01N 3/28
Total number of patents in this class: 69
10-year publication summary
|
6
|
4
|
9
|
5
|
7
|
1
|
7
|
6
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6892 |
13 |
| Hitachi, Ltd. | 15537 |
3 |
| East China University of Science and Technology | 518 |
3 |
| The Boeing Company | 20098 |
2 |
| Applied Materials, Inc. | 18819 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 31756 |
2 |
| Nippon Steel Corporation | 6321 |
2 |
| SSAB Technology AB | 159 |
2 |
| Shanghai Electric Power Equipment Co., Ltd. Shanghai Steam Turbine Factory | 2 |
2 |
| Centre National de La Recherche Scientifique | 10498 |
1 |
| GM Global Technology Operations LLC | 15133 |
1 |
| Ford Global Technologies, LLC | 20682 |
1 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8476 |
1 |
| Ampacimon S.A. | 31 |
1 |
| Bando Chemical Industries, Ltd. | 583 |
1 |
| Biodynamic Research Corporation | 5 |
1 |
| Buhler AG | 530 |
1 |
| Chevron Phillips Chemical Company LP | 1828 |
1 |
| Cool Clubs, LLC | 2 |
1 |
| Eth Zurich | 1282 |
1 |
| Other owners | 27 |