- All sections
- B - Performing operationstransporting
- B23B - Turningboring
- B23B 31/117 - Retention by friction only, e.g. using springs, resilient sleeves, tapers
Patent holdings for IPC class B23B 31/117
Total number of patents in this class: 250
10-year publication summary
|
23
|
25
|
17
|
16
|
9
|
20
|
14
|
24
|
12
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Franz Haimer Maschinenbau KG | 143 |
40 |
| Haimer GmbH | 73 |
14 |
| Iscar, Ltd. | 1119 |
11 |
| Techniks, LLC | 19 |
8 |
| Kennametal Inc. | 1387 |
7 |
| Bilz Werkzeugfabrik GmbH & Co. KG | 22 |
6 |
| Schunk GmbH & Co. KG Spann- und Greiftechnik | 98 |
6 |
| DMG MORI Co., Ltd. | 866 |
5 |
| Pascal Engineering Corporation | 130 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 8735 |
4 |
| Daishowa Seiki Co., Ltd. | 9 |
4 |
| Schenck RoTec GmbH | 150 |
4 |
| Helmut Diebold GmbH & Co. Goldring-Werkzeugfabrik | 14 |
4 |
| Big Alpha Co., Inc. | 9 |
3 |
| Fuji Corporation | 3371 |
3 |
| Giffin Tec Inc. | 9 |
3 |
| Guehring KG | 57 |
3 |
| Kitamura Machinery Co., Ltd. | 67 |
3 |
| Makino Milling Machine Co., Ltd. | 415 |
3 |
| Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG | 146 |
3 |
| Other owners | 111 |