- 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 3/52 - Sharpening cutting edges, e.g. of toolsAccessories therefor, e.g. for holding the tools of cutting blades of shear blades or scissors
Patent holdings for IPC class B24B 3/52
Total number of patents in this class: 29
10-year publication summary
|
7
|
6
|
3
|
5
|
0
|
5
|
1
|
4
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Darex, LLC | 178 |
11 |
| Wolff Industries, Inc. | 31 |
5 |
| Edgecraft Corporation | 95 |
3 |
| Razor Edge Systems, Inc. | 33 |
3 |
| Horl 1993 GmbH | 50 |
2 |
| Clean Scissors LLC | 1 |
1 |
| Technical (HK) Manufacturing Limited | 1 |
1 |
| Ye, Xiaojing | 9 |
1 |
| Startool, Inc. | 11 |
1 |
| Yong Yi International Holding Co., Ltd. Taiwan Branch | 1 |
1 |
| Other owners | 0 |