- All sections
- B - Performing operations; transporting
- B23B - Turning; boring
- 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: 241
10-year publication summary
|
22
|
16
|
23
|
24
|
17
|
16
|
26
|
19
|
14
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kennametal Inc. | 1380 |
21 |
| Schunk GmbH & Co. KG Spann- und Greiftechnik | 111 |
15 |
| Franz Haimer Maschinenbau KG | 144 |
13 |
| Gühring KG | 342 |
9 |
| Disco Corporation | 1745 |
8 |
| AB Sandvik Coromant | 175 |
6 |
| Guehring KG | 58 |
6 |
| ETP Transmission AB | 27 |
5 |
| Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG | 153 |
5 |
| SMC Corporation | 1354 |
5 |
| Hydra-Lock Corporation | 18 |
4 |
| Rolls-Royce PLC | 2944 |
3 |
| Big Daishowa Seiki Co Ltd | 13 |
3 |
| Core Flow Ltd. | 32 |
3 |
| Sandvik Intellectual Property AB | 1634 |
3 |
| SMW-AUTOBLOK Spannsysteme GmbH | 101 |
3 |
| Samchully Machinery Co., Ltd. | 8 |
3 |
| Canon Inc. | 36841 |
2 |
| Schaeffler Technologies AG & Co. KG | 8880 |
2 |
| ACM Research (Shanghai) Inc. | 205 |
2 |
| Other owners | 120 |