- 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: 245
10-year publication summary
|
25
|
17
|
16
|
9
|
20
|
14
|
23
|
12
|
10
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Franz Haimer Maschinenbau KG | 141 |
39 |
| Haimer GmbH | 75 |
15 |
| Iscar, Ltd. | 1082 |
9 |
| Techniks, LLC | 19 |
8 |
| Kennametal Inc. | 1355 |
6 |
| Bilz Werkzeugfabrik GmbH & Co. KG | 21 |
6 |
| DMG MORI Co., Ltd. | 935 |
5 |
| Schunk GmbH & Co. KG Spann- und Greiftechnik | 94 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
4 |
| Daishowa Seiki Co., Ltd. | 9 |
4 |
| Schenck RoTec GmbH | 150 |
4 |
| Helmut Diebold GmbH & Co. Goldring-Werkzeugfabrik | 14 |
4 |
| Konica Minolta, Inc. | 9176 |
3 |
| Big Alpha Co., Inc. | 8 |
3 |
| Fuji Corporation | 3696 |
3 |
| Giffin Tec Inc. | 9 |
3 |
| Guehring KG | 65 |
3 |
| Kitamura Machinery Co., Ltd. | 66 |
3 |
| Makino Milling Machine Co., Ltd. | 434 |
3 |
| Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG | 127 |
3 |
| Other owners | 112 |