- All sections
- B - Performing operationstransporting
- B23F - Making gears or toothed racks
- B23F 21/20 - Fly cutters
Patent holdings for IPC class B23F 21/20
Total number of patents in this class: 14
10-year publication summary
|
0
|
0
|
1
|
2
|
1
|
0
|
1
|
1
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AB Sandvik Coromant | 244 |
3 |
| Felsomat GmbH & Co. KG | 49 |
2 |
| Profilator GmbH & Co. KG | 63 |
2 |
| eMag GmbH & Co. KG | 26 |
2 |
| Gebr. Heller Maschinenfabrik GmbH | 63 |
1 |
| The Gleason Works | 202 |
1 |
| Voith Patent GmbH | 2768 |
1 |
| Lleu Limited | 1 |
1 |
| Kap Precision Components GmbH | 1 |
1 |
| Other owners | 0 |