- All sections
- B - Performing operationstransporting
- B23C - Milling
- B23C 3/28 - Grooving workpieces
Patent holdings for IPC class B23C 3/28
Total number of patents in this class: 76
10-year publication summary
|
10
|
9
|
6
|
5
|
4
|
1
|
5
|
3
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Rubber Industries, Ltd. | 4713 |
9 |
| Kyocera SGS Precision Tools, Inc. | 43 |
4 |
| Makino Milling Machine Co., Ltd. | 425 |
4 |
| Mitsubishi Gas Chemical Company, Inc. | 3587 |
4 |
| 3m Innovative Properties Company | 17512 |
3 |
| Yamazaki Mazak Corporation | 245 |
3 |
| Ford Motor Company | 2678 |
2 |
| Kennametal Inc. | 1364 |
2 |
| General Atomics | 165 |
2 |
| Karsten Manufacturing Corporation | 3259 |
2 |
| Tokyo Seimitsu Co., Ltd. | 389 |
2 |
| Stryker European Operations Holdings, LLC | 725 |
2 |
| The Boeing Company | 20097 |
1 |
| Hitachi, Ltd. | 15895 |
1 |
| Ford Global Technologies, LLC | 21274 |
1 |
| Konica Minolta Opto, Inc. | 956 |
1 |
| Lam Research Corporation | 5528 |
1 |
| Siemens Energy, Inc. | 1694 |
1 |
| Contemporary Amperex Technology Co., Limited | 8968 |
1 |
| Disco Corporation | 1932 |
1 |
| Other owners | 29 |