- 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 41/047 - Grinding heads for working on plane surfaces
Patent holdings for IPC class B24B 41/047
Total number of patents in this class: 172
10-year publication summary
|
10
|
10
|
18
|
21
|
15
|
21
|
20
|
21
|
11
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Husqvarna AB | 2930 |
20 |
| Ebara Corporation | 2188 |
11 |
| Disco Corporation | 1871 |
7 |
| Ancora S.p.A. | 26 |
7 |
| 3m Innovative Properties Company | 17781 |
5 |
| Applied Materials, Inc. | 18892 |
4 |
| II-VI Delaware, Inc. | 1650 |
4 |
| Multiquip, Inc. | 74 |
4 |
| Co.me.s. S.r.l. | 9 |
4 |
| HTC Sweden AB | 13 |
3 |
| HH Patent A/S | 8 |
3 |
| Samsung Electronics Co., Ltd. | 147622 |
2 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 43400 |
2 |
| Tokyo Electron Limited | 12899 |
2 |
| Makita Corporation | 2462 |
2 |
| Aros S.r.l. | 10 |
2 |
| JÖST GmbH | 38 |
2 |
| MBD S.r.l. | 3 |
2 |
| Sumco Corporation | 1115 |
2 |
| Tokyo Seimitsu Co., Ltd. | 357 |
2 |
| Other owners | 82 |