- 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: 309
10-year publication summary
|
29
|
23
|
18
|
22
|
32
|
23
|
17
|
16
|
16
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Essilor International (compagnie Generale D'optique) | 2918 |
125 |
| Satisloh AG | 110 |
32 |
| Schneider GmbH & Co. KG | 160 |
31 |
| Carl Zeiss Vision International GmbH | 556 |
12 |
| Benz Research and Development Corporation | 47 |
6 |
| Hoya Lens Thailand Ltd. | 447 |
5 |
| MEI S.r.L. | 21 |
5 |
| Shamir Optical Industry Ltd. | 176 |
5 |
| OptoTech Optikmaschinen GmbH | 27 |
4 |
| Rodenstock GmbH | 356 |
4 |
| Olympus Corporation | 13667 |
3 |
| Huvitz Co., Ltd. | 42 |
3 |
| Nidek Co., Ltd. | 357 |
3 |
| Transitions Optical Limited | 133 |
3 |
| Delamare Sovra SAS | 3 |
3 |
| 3m Innovative Properties Company | 18406 |
2 |
| Canon Inc. | 36841 |
2 |
| FUJIFILM Corporation | 27102 |
2 |
| Hoya Corporation | 2822 |
2 |
| Automation & Robotics S.A. | 6 |
2 |
| Other owners | 55 |