- 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 21/18 - Accessories
Patent holdings for IPC class B24B 21/18
Total number of patents in this class: 69
10-year publication summary
|
2
|
4
|
18
|
2
|
4
|
6
|
4
|
3
|
7
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebara Corporation | 2139 |
5 |
| HOMAG Bohrsysteme GmbH | 40 |
4 |
| Applied Materials, Inc. | 18383 |
3 |
| Nitto Kohki Co., Ltd. | 269 |
3 |
| Tormek AB | 37 |
3 |
| 3m Innovative Properties Company | 17842 |
2 |
| Columbia Insurance Company | 1503 |
2 |
| Pratt & Whitney Canada Corp. | 4533 |
2 |
| ATT Technology, Ltd. | 13 |
2 |
| Chongqing University | 265 |
2 |
| Meinan Machinery Works, Inc. | 64 |
2 |
| Supfina Grieshaber GmbH & Co. KG | 81 |
2 |
| Chongqing Samhida Grinding Machine Company | 4 |
2 |
| DC Precision Ceramics, LLC | 6 |
2 |
| Samsung Electronics Co., Ltd. | 143812 |
1 |
| Illinois Tool Works Inc. | 11392 |
1 |
| Sumitomo Electric Industries, Ltd. | 15321 |
1 |
| Massachusetts Institute of Technology | 10002 |
1 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8479 |
1 |
| JTEKT Corporation | 2482 |
1 |
| Other owners | 27 |