- All sections
- B - Performing operationstransporting
- B23H - Working of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a toolsuch working combined with other forms of working of metal
- B23H 9/14 - Making holes
Patent holdings for IPC class B23H 9/14
Total number of patents in this class: 189
10-year publication summary
|
20
|
27
|
22
|
16
|
10
|
4
|
8
|
10
|
7
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13845 |
15 |
| Siemens AG | 24409 |
14 |
| GE Infrastructure Technology, LLC | 6246 |
13 |
| Makino Milling Machine Co., Ltd. | 416 |
12 |
| Mitsubishi Heavy Industries, Ltd. | 8783 |
11 |
| Rtx Corporation | 9437 |
11 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1551 |
5 |
| Roche Sequencing Solutions, Inc. | 658 |
5 |
| Safran Aircraft Engines | 6304 |
5 |
| Vactronix Scientific, LLC | 88 |
4 |
| Mitsubishi Power, Ltd. | 1784 |
4 |
| Cummins Inc. | 2603 |
3 |
| Cummins Ltd. | 197 |
3 |
| Hoden Seimitsu Kako Kenkyusho Co., Ltd. | 40 |
3 |
| Sodick Co., Ltd. | 299 |
3 |
| SAFRAN S.A. | 626 |
2 |
| Denso Corporation | 24431 |
2 |
| Caterpillar Inc. | 9628 |
2 |
| Hamilton Sundstrand Corporation | 4907 |
2 |
| Siemens Energy, Inc. | 1706 |
2 |
| Other owners | 68 |