- 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 13/04 - Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other workAccessories therefor grinding of lenses involving grinding wheels controlled by gearing
Patent holdings for IPC class B24B 13/04
Total number of patents in this class: 38
10-year publication summary
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4
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3
|
1
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0
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1
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1
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1
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0
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1
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Satisloh AG | 115 |
4 |
| Hoya Corporation | 2744 |
3 |
| Comadur S.A. | 84 |
3 |
| Kojima Engineering Co., Ltd. | 6 |
3 |
| Panasonic Corporation | 20313 |
2 |
| Essilor International (compagnie Generale D'optique) | 2960 |
2 |
| Schneider GmbH & Co. KG | 158 |
2 |
| Venmill Industries Incorporated | 23 |
2 |
| Hitachi Maxell, Ltd. | 446 |
1 |
| Olympus Corporation | 13270 |
1 |
| Konica Minolta, Inc. | 8552 |
1 |
| Cranfield University | 91 |
1 |
| FLIR Systems Trading Belgium BVBA | 20 |
1 |
| Kyoto University | 2779 |
1 |
| OptoTech Optikmaschinen GmbH | 27 |
1 |
| Satisloh GmbH | 14 |
1 |
| Suntech Co., Ltd. | 11 |
1 |
| Tessera North America, Inc. | 11 |
1 |
| Maxell Holdings, Ltd. | 1359 |
1 |
| Maxell, Ltd. | 2681 |
1 |
| Other owners | 5 |