- All sections
- B - Performing operations; transporting
- B23B - Turning; boring
- B23B 31/16 - Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
Patent holdings for IPC class B23B 31/16
Total number of patents in this class: 201
10-year publication summary
|
18
|
8
|
16
|
15
|
7
|
23
|
19
|
17
|
11
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kitagawa Iron Works Co., Ltd. | 55 |
20 |
| Apex Brands, Inc. | 820 |
15 |
| Rohm GmbH | 299 |
14 |
| SMW-AUTOBLOK Spannsysteme GmbH | 101 |
9 |
| Illinois Tool Works Inc. | 11152 |
6 |
| M.p.c.-system AB | 7 |
6 |
| Black & Decker, Inc. | 2402 |
5 |
| Aktiebolaget SKF | 2700 |
5 |
| Hardinge, Inc. | 65 |
4 |
| Howa Machinery, Ltd. | 40 |
4 |
| Schaeffler Technologies AG & Co. KG | 8880 |
3 |
| Shandong Weida Machinery Co., Ltd. | 25 |
3 |
| SMS Meer GmbH | 68 |
3 |
| Maus S.p.A. | 8 |
3 |
| Siemens AG | 24990 |
2 |
| Pratt & Whitney Canada Corp. | 4215 |
2 |
| Robert Bosch GmbH | 40953 |
2 |
| Komatsu NTC Ltd. | 119 |
2 |
| Hilti Aktiengesellschaft | 3227 |
2 |
| CITIC Dicastal CO., LTD | 531 |
2 |
| Other owners | 89 |