- 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 21/02 - Machines or devices using grinding or polishing beltsAccessories therefor for grinding rotationally symmetrical surfaces
Patent holdings for IPC class B24B 21/02
Total number of patents in this class: 67
10-year publication summary
|
6
|
9
|
7
|
6
|
2
|
3
|
3
|
6
|
1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Supfina Grieshaber GmbH & Co. KG | 81 |
15 |
| Thielenhaus Technologies GmbH | 17 |
5 |
| Nagel Maschinen- und Werkzeugfabrik GmbH | 22 |
3 |
| 3m Innovative Properties Company | 17848 |
2 |
| Ebara Corporation | 2129 |
2 |
| Nippon Steel Corporation | 6139 |
2 |
| Optipro Systems, L.L.C. | 12 |
2 |
| Hitachi Astemo, Ltd. | 6346 |
2 |
| Rtx Corporation | 9288 |
2 |
| Apple Inc. | 54300 |
1 |
| Honda Motor Co., Ltd. | 25116 |
1 |
| Boe Technology Group Co., Ltd. | 40474 |
1 |
| ATT Technology, Ltd. | 13 |
1 |
| CITIC Dicastal CO., LTD | 558 |
1 |
| Ecolab USA Inc. | 5439 |
1 |
| GE Oil & Gas Pressure Control LP | 75 |
1 |
| Grind Master Machines Pvt. Ltd | 6 |
1 |
| Kobe Material Testing Laboratory Co., Ltd. | 6 |
1 |
| KYB Corporation | 1349 |
1 |
| MIE Electronics Co., Ltd. | 5 |
1 |
| Other owners | 21 |