- All sections
- B - Performing operations; transporting
- 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: 58
10-year publication summary
|
8
|
7
|
7
|
4
|
1
|
4
|
4
|
2
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries Machine Tool Co., Ltd. | 147 |
6 |
| SAMP S.p.A. Con Unico Socio | 22 |
5 |
| MAG IAS GmbH | 82 |
4 |
| JTEKT Corporation | 2423 |
3 |
| Felsomat GmbH & Co. KG | 51 |
3 |
| Mazda Motor Corporation | 3087 |
2 |
| Fuji Corporation | 2924 |
2 |
| Gleason Cutting Tools Corporation | 10 |
2 |
| Gleason-Pfauter Maschinenfabrik GmbH | 89 |
2 |
| Liebherr-Verzahntechnik GmbH | 72 |
2 |
| Niles Werkzeugmaschinen GmbH | 19 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Eaton Corporation | 1839 |
1 |
| Hitachi Automotive Systems, Ltd. | 3970 |
1 |
| GM Global Technology Operations LLC | 13620 |
1 |
| Aisin Seiki Kabushiki Kaisha | 2427 |
1 |
| Aisin AW Co., Ltd. | 2430 |
1 |
| Yamaha Motor Co., Ltd. | 2740 |
1 |
| Komatsu Ltd. | 4265 |
1 |
| Audi AG | 7153 |
1 |
| Other owners | 16 |