- 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
|
7
|
10
|
10
|
7
|
5
|
4
|
1
|
5
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Rubber Industries, Ltd. | 4651 |
9 |
| Kyocera SGS Precision Tools, Inc. | 45 |
5 |
| Makino Milling Machine Co., Ltd. | 415 |
4 |
| Mitsubishi Gas Chemical Company, Inc. | 3466 |
4 |
| 3m Innovative Properties Company | 17819 |
3 |
| Yamazaki Mazak Corporation | 212 |
3 |
| Ford Motor Company | 2719 |
2 |
| Kennametal Inc. | 1387 |
2 |
| General Atomics | 163 |
2 |
| Karsten Manufacturing Corporation | 3205 |
2 |
| Tokyo Seimitsu Co., Ltd. | 340 |
2 |
| Stryker European Operations Holdings, LLC | 793 |
2 |
| The Boeing Company | 20057 |
1 |
| Hitachi, Ltd. | 15499 |
1 |
| Konica Minolta Opto, Inc. | 1075 |
1 |
| Lam Research Corporation | 5259 |
1 |
| Siemens Energy, Inc. | 1689 |
1 |
| Disco Corporation | 1864 |
1 |
| Fuji Corporation | 3371 |
1 |
| Fuji Machine Mfg. Co., Ltd. | 979 |
1 |
| Other owners | 28 |