- All sections
- B - Performing operations; transporting
- B24B - Machines, devices, or processes for grinding or polishing; dressing or conditioning of abrading surfaces; feeding of grinding, polishing, or lapping agents
- B24B 21/20 - Accessories for controlling or adjusting the tracking or the tension of the grinding belt
Patent holdings for IPC class B24B 21/20
Total number of patents in this class: 74
10-year publication summary
|
6
|
5
|
12
|
6
|
6
|
8
|
7
|
3
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebara Corporation | 2078 |
11 |
| Darex, LLC | 155 |
8 |
| Prosharp Inc. | 6 |
4 |
| Supfina Grieshaber GmbH & Co. KG | 80 |
4 |
| Illinois Tool Works Inc. | 11369 |
2 |
| Chongqing University | 256 |
2 |
| FerRobotics Compliant Robot Technology GmbH | 66 |
2 |
| Nagel Maschinen- und Werkzeugfabrik GmbH | 24 |
2 |
| SIR S.p.A. | 26 |
2 |
| Chongqing Samhida Grinding Machine Company | 4 |
2 |
| Infinititech Srl | 2 |
2 |
| Suzhou Yuanlian Science and Technology Pioneer Park Management Co., Ltd | 16 |
2 |
| General Electric Company | 17803 |
1 |
| The Boeing Company | 19901 |
1 |
| Robert Bosch GmbH | 41717 |
1 |
| Applied Materials, Inc. | 17696 |
1 |
| Bayerische Motoren Werke Aktiengesellschaft | 13830 |
1 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8482 |
1 |
| Boe Technology Group Co., Ltd. | 38777 |
1 |
| Basso Industry Corp. | 139 |
1 |
| Other owners | 23 |