- All sections
- B - Performing operationstransporting
- B24B - Machines, devices, or processes for grinding or polishingdressing or conditioning of abrading surfacesfeeding 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: 80
10-year publication summary
|
5
|
12
|
6
|
6
|
6
|
7
|
3
|
2
|
5
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebara Corporation | 2253 |
12 |
| Darex, LLC | 165 |
8 |
| Supfina Grieshaber GmbH & Co. KG | 73 |
4 |
| Prosharp Inc. | 5 |
3 |
| Infinititech Srl | 3 |
3 |
| Illinois Tool Works Inc. | 11662 |
2 |
| Chongqing University | 290 |
2 |
| FerRobotics Compliant Robot Technology GmbH | 66 |
2 |
| Nagel Maschinen- und Werkzeugfabrik GmbH | 22 |
2 |
| SIR S.p.A. | 26 |
2 |
| Chongqing Samhida Grinding Machine Company | 4 |
2 |
| Suzhou Yuanlian Science and Technology Pioneer Park Management Co., Ltd | 16 |
2 |
| General Electric Company | 13777 |
1 |
| The Boeing Company | 20111 |
1 |
| Robert Bosch GmbH | 43321 |
1 |
| Applied Materials, Inc. | 19717 |
1 |
| Bayerische Motoren Werke Aktiengesellschaft | 14890 |
1 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8475 |
1 |
| Boe Technology Group Co., Ltd. | 42523 |
1 |
| Basso Industry Corp. | 144 |
1 |
| Other owners | 28 |