- All sections
- B - Performing operationstransporting
- B23F - Making gears or toothed racks
- B23F 5/22 - Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling the tool being a hob for making spur gears
Patent holdings for IPC class B23F 5/22
Total number of patents in this class: 59
10-year publication summary
|
7
|
4
|
1
|
4
|
4
|
3
|
0
|
0
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries Machine Tool Co., Ltd. | 134 |
6 |
| SAMP S.p.A. Con Unico Socio | 21 |
5 |
| JTEKT Corporation | 2622 |
3 |
| Felsomat GmbH & Co. KG | 42 |
3 |
| Mazda Motor Corporation | 3310 |
2 |
| Fuji Corporation | 3696 |
2 |
| Gleason Cutting Tools Corporation | 10 |
2 |
| Gleason-Pfauter Maschinenfabrik GmbH | 97 |
2 |
| Liebherr-Verzahntechnik GmbH | 78 |
2 |
| MAG IAS GmbH | 72 |
2 |
| Niles Werkzeugmaschinen GmbH | 19 |
2 |
| MODUL MT Verzahntechnik GmbH | 5 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
1 |
| Eaton Corporation | 1804 |
1 |
| Hitachi Automotive Systems, Ltd. | 3954 |
1 |
| GM Global Technology Operations LLC | 16232 |
1 |
| Yamaha Motor Co., Ltd. | 2846 |
1 |
| Komatsu Ltd. | 4786 |
1 |
| Audi AG | 7582 |
1 |
| BURRI Werkzeugmaschinen GmbH & Co. KG | 2 |
1 |
| Other owners | 18 |