- All sections
- B - Performing operations; transporting
- B23F - Making gears or toothed racks
- B23F 23/12 - Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
Patent holdings for IPC class B23F 23/12
Total number of patents in this class: 270
10-year publication summary
|
33
|
29
|
23
|
32
|
23
|
23
|
15
|
27
|
20
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Reishauer AG | 79 |
28 |
| Gleason-Pfauter Maschinenfabrik GmbH | 89 |
21 |
| Liebherr-Verzahntechnik GmbH | 72 |
20 |
| Mitsubishi Heavy Industries Machine Tool Co., Ltd. | 147 |
18 |
| Klingelnberg AG | 74 |
17 |
| KAPP NILES GmbH & Co. KG | 24 |
16 |
| The Gleason Works | 202 |
13 |
| Profilator GmbH & Co. KG | 64 |
10 |
| Klingelnberg GmbH | 54 |
9 |
| Prawema Antriebstechnik GmbH | 34 |
9 |
| JTEKT Corporation | 2423 |
7 |
| Niles Werkzeugmaschinen GmbH | 19 |
6 |
| KAPP Werkzeugmaschinen GmbH | 10 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
4 |
| Felsomat GmbH & Co. KG | 51 |
4 |
| Gleason Switzerland AG | 9 |
4 |
| Honda Motor Co., Ltd. | 24537 |
3 |
| Automation Controls & Engineering, LLC | 4 |
3 |
| Gleason Metrology Systems Corporation | 19 |
3 |
| IMO Holding GmbH | 85 |
3 |
| Other owners | 67 |