- 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 21/00 - Machines or devices using grinding or polishing belts; Accessories therefor
Patent holdings for IPC class B24B 21/00
Total number of patents in this class: 255
10-year publication summary
|
19
|
27
|
24
|
25
|
20
|
20
|
22
|
10
|
17
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebara Corporation | 1951 |
66 |
| 3m Innovative Properties Company | 18406 |
14 |
| Supfina Grieshaber GmbH & Co. KG | 85 |
13 |
| Sharp Kabushiki Kaisha | 18957 |
8 |
| Darex, LLC | 129 |
7 |
| Corning Incorporated | 9932 |
6 |
| Prosharp Inc. | 13 |
6 |
| Samsung Electronics Co., Ltd. | 131630 |
4 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
4 |
| Nihon Micro Coating Co., Ltd. | 23 |
4 |
| Rud. Starcke GmbH & Co. KG | 46 |
4 |
| V Technology Co., Ltd. | 394 |
4 |
| Columbia Insurance Company | 1569 |
3 |
| CITIC Dicastal CO., LTD | 531 |
3 |
| Nagel Maschinen- und Werkzeugfabrik GmbH | 20 |
3 |
| Nitto Kohki Co., Ltd. | 280 |
3 |
| Robert Bosch GmbH | 40953 |
2 |
| Bayerische Motoren Werke Aktiengesellschaft | 13126 |
2 |
| Showa Denko K.K. | 2539 |
2 |
| Comadur S.A. | 81 |
2 |
| Other owners | 95 |