- All sections
- B - Performing operationstransporting
- B23F - Making gears or toothed racks
- B23F 21/04 - Planing or slotting tools
Patent holdings for IPC class B23F 21/04
Total number of patents in this class: 19
10-year publication summary
|
3
|
2
|
2
|
1
|
3
|
3
|
0
|
1
|
0
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Gleason Works | 201 |
4 |
| Gleason Cutting Tools Corporation | 10 |
2 |
| Klingelnberg AG | 80 |
2 |
| Mitsubishi Heavy Industries Machine Tool Co., Ltd. | 140 |
2 |
| Profilator GmbH & Co. KG | 63 |
2 |
| AB Sandvik Coromant | 240 |
1 |
| Felsomat GmbH & Co. KG | 49 |
1 |
| GKN Aerospace Sweden AB | 91 |
1 |
| Gleason-Pfauter Maschinenfabrik GmbH | 92 |
1 |
| Kreuz Co., Ltd. | 3 |
1 |
| Flender GmbH | 368 |
1 |
| Gleason Switzerland AG | 11 |
1 |
| Other owners | 0 |