- 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 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
Patent holdings for IPC class B24B 49/12
Total number of patents in this class: 744
10-year publication summary
|
66
|
41
|
48
|
60
|
83
|
74
|
46
|
84
|
69
|
18
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Applied Materials, Inc. | 16587 |
113 |
| Ebara Corporation | 1951 |
87 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
33 |
| Disco Corporation | 1745 |
25 |
| Shin-Etsu Handotai Co., Ltd. | 1277 |
21 |
| 3m Innovative Properties Company | 18406 |
16 |
| Essilor International (compagnie Generale D'optique) | 2918 |
16 |
| Tokyo Electron Limited | 11599 |
13 |
| Sumco Corporation | 1116 |
12 |
| Tokyo Seimitsu Co., Ltd. | 257 |
10 |
| Canvas Construction, Inc. | 26 |
10 |
| Marposs, S.p.A. | 141 |
9 |
| Rohm and Haas Electronic Materials CMP Holdings, Inc. | 309 |
8 |
| Husqvarna AB | 2824 |
7 |
| FANUC Corporation | 5803 |
6 |
| Taikisha Ltd. | 110 |
6 |
| The Boeing Company | 19843 |
5 |
| Schneider GmbH & Co. KG | 160 |
5 |
| Towa Corporation | 236 |
5 |
| Micron Technology, Inc. | 24960 |
4 |
| Other owners | 333 |