- 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. | 4483 |
9 |
| Kyocera SGS Precision Tools, Inc. | 45 |
5 |
| Makino Milling Machine Co., Ltd. | 412 |
4 |
| Mitsubishi Gas Chemical Company, Inc. | 3438 |
4 |
| 3m Innovative Properties Company | 17849 |
3 |
| Yamazaki Mazak Corporation | 204 |
3 |
| Ford Motor Company | 2711 |
2 |
| Kennametal Inc. | 1393 |
2 |
| General Atomics | 164 |
2 |
| Karsten Manufacturing Corporation | 3192 |
2 |
| Tokyo Seimitsu Co., Ltd. | 332 |
2 |
| Stryker European Operations Holdings, LLC | 791 |
2 |
| The Boeing Company | 20013 |
1 |
| Hitachi, Ltd. | 15434 |
1 |
| Konica Minolta Opto, Inc. | 1094 |
1 |
| Lam Research Corporation | 5187 |
1 |
| Siemens Energy, Inc. | 1693 |
1 |
| Disco Corporation | 1848 |
1 |
| Fuji Corporation | 3320 |
1 |
| Fuji Machine Mfg. Co., Ltd. | 979 |
1 |
| Other owners | 28 |