- 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 47/22 - Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
Patent holdings for IPC class B24B 47/22
Total number of patents in this class: 127
10-year publication summary
|
3
|
3
|
7
|
9
|
8
|
16
|
21
|
6
|
13
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Essilor International (compagnie Generale D'optique) | 2990 |
30 |
| Tokyo Seimitsu Co., Ltd. | 340 |
7 |
| Applied Materials, Inc. | 18759 |
4 |
| Ebara Corporation | 2176 |
4 |
| Rodenstock GmbH | 383 |
4 |
| Soltek S.r.l. | 6 |
4 |
| Tokyo Electron Limited | 12795 |
3 |
| Shibaura Machine Co., Ltd. | 223 |
3 |
| Bando Kiko Co., Ltd. | 73 |
2 |
| CITIC Dicastal CO., LTD | 560 |
2 |
| Schneider GmbH & Co. KG | 160 |
2 |
| Towa Corporation | 300 |
2 |
| Venmill Industries Incorporated | 23 |
2 |
| pro-micron GmbH | 22 |
2 |
| Zhejiang Meiri Intelligent Equipment Co., Ltd | 5 |
2 |
| Kimberly-clark Worldwide, Inc. | 5499 |
1 |
| Robert Bosch GmbH | 42721 |
1 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 43015 |
1 |
| Corning Incorporated | 10284 |
1 |
| Asahi Glass Company, Limited | 2771 |
1 |
| Other owners | 49 |