- All sections
- B - Performing operationstransporting
- B23B - Turningboring
- B23B 31/30 - Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
Patent holdings for IPC class B23B 31/30
Total number of patents in this class: 252
10-year publication summary
|
23
|
24
|
17
|
15
|
26
|
21
|
15
|
19
|
9
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kennametal Inc. | 1364 |
24 |
| Schunk GmbH & Co. KG Spann- und Greiftechnik | 96 |
13 |
| Franz Haimer Maschinenbau KG | 140 |
12 |
| Gühring KG | 372 |
9 |
| AB Sandvik Coromant | 267 |
8 |
| Disco Corporation | 1919 |
8 |
| Guehring KG | 60 |
8 |
| Core Flow Ltd. | 36 |
5 |
| Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG | 129 |
5 |
| SMC Corporation | 1375 |
5 |
| ETP Transmission AB | 24 |
4 |
| Rolls-Royce PLC | 3173 |
3 |
| Big Daishowa Seiki Co Ltd | 18 |
3 |
| Haimer GmbH | 72 |
3 |
| Hydra-Lock Corporation | 15 |
3 |
| Kitagawa Iron Works Co., Ltd. | 60 |
3 |
| Reishauer AG | 99 |
3 |
| Sandvik Intellectual Property AB | 1435 |
3 |
| SMW-AUTOBLOK Spannsysteme GmbH | 102 |
3 |
| Samchully Machinery Co., Ltd. | 7 |
3 |
| Other owners | 124 |