- 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 49/02 - 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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
Patent holdings for IPC class B24B 49/02
Total number of patents in this class: 154
10-year publication summary
20
|
8
|
9
|
12
|
16
|
16
|
8
|
19
|
18
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Applied Materials, Inc. | 16587 |
14 |
Ebara Corporation | 1951 |
13 |
Tokyo Electron Limited | 11599 |
8 |
NSK Ltd. | 2719 |
5 |
Disco Corporation | 1745 |
5 |
Erwin Junker Grinding Technology A.S. | 27 |
4 |
Sumco Corporation | 1116 |
4 |
The Hillman Group, Inc. | 374 |
3 |
SK Siltron Co., Ltd. | 146 |
3 |
Samsung Electronics Co., Ltd. | 131630 |
2 |
Hitachi, Ltd. | 16452 |
2 |
Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
2 |
NTN Corporation | 5008 |
2 |
Amatsuji Steel Ball Mfg. Co., Ltd. | 4 |
2 |
Essilor International (compagnie Generale D'optique) | 2918 |
2 |
Fives Landis Corp. | 33 |
2 |
Futura S.p.A. | 134 |
2 |
Loram Maintenance of Way, Inc. | 62 |
2 |
Nidek Co., Ltd. | 357 |
2 |
Shin-Etsu Handotai Co., Ltd. | 1277 |
2 |
Other owners | 73 |