- 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 49/03 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements 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 according to the final size of the previously ground workpiece
Patent holdings for IPC class B24B 49/03
Total number of patents in this class: 53
10-year publication summary
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3
|
4
|
4
|
6
|
6
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0
|
2
|
1
|
6
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebara Corporation | 2188 |
8 |
| Disco Corporation | 1871 |
4 |
| Essilor International (compagnie Generale D'optique) | 2991 |
4 |
| Globalwafers Co., Ltd. | 648 |
4 |
| Shin-Etsu Handotai Co., Ltd. | 1283 |
4 |
| Sumco Corporation | 1115 |
3 |
| Tokyo Electron Limited | 12899 |
2 |
| Schaeffler Technologies AG & Co. KG | 9995 |
2 |
| Klingelnberg GmbH | 52 |
2 |
| The Boeing Company | 20124 |
1 |
| Applied Materials, Inc. | 18892 |
1 |
| NSK Ltd. | 2793 |
1 |
| Adcole Corporation | 4 |
1 |
| Control Gaging, Inc. | 5 |
1 |
| Erwin Junker Maschinenfabrik GmbH | 40 |
1 |
| Fritz Studer AG | 22 |
1 |
| Glebar Acquisition, LLC | 11 |
1 |
| MEMC Electronic Materials, Inc. | 78 |
1 |
| Nippon Steel Corporation | 6344 |
1 |
| OptoTech Optikmaschinen GmbH | 29 |
1 |
| Other owners | 9 |