- 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 13/005 - Blocking means, chucks or the like; Alignment devices
Patent holdings for IPC class B24B 13/005
Total number of patents in this class: 317
10-year publication summary
|
23
|
18
|
22
|
32
|
24
|
17
|
17
|
16
|
22
|
0
|
| 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) | 2956 |
126 |
| Satisloh AG | 115 |
35 |
| Schneider GmbH & Co. KG | 158 |
31 |
| Carl Zeiss Vision International GmbH | 608 |
13 |
| Rodenstock GmbH | 376 |
7 |
| Benz Research and Development Corporation | 45 |
6 |
| Hoya Lens Thailand Ltd. | 513 |
5 |
| MEI S.r.L. | 22 |
5 |
| Shamir Optical Industry Ltd. | 177 |
5 |
| Nidek Co., Ltd. | 349 |
4 |
| OptoTech Optikmaschinen GmbH | 27 |
4 |
| CooperVision International Limited | 608 |
4 |
| Olympus Corporation | 13275 |
3 |
| Huvitz Co., Ltd. | 45 |
3 |
| Transitions Optical Limited | 153 |
3 |
| Delamare Sovra SAS | 3 |
3 |
| 3m Innovative Properties Company | 17957 |
2 |
| Canon Inc. | 38148 |
2 |
| FUJIFILM Corporation | 28805 |
2 |
| Hoya Corporation | 2745 |
2 |
| Other owners | 52 |