- All sections
- B - Performing operationstransporting
- B28D - Working stone or stone-like materials
- B28D 5/02 - Fine working of gems, jewels, crystals, e.g. of semiconductor materialApparatus therefor by rotary tools, e.g. drills
Patent holdings for IPC class B28D 5/02
Total number of patents in this class: 151
10-year publication summary
|
7
|
18
|
13
|
10
|
18
|
4
|
8
|
11
|
7
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Disco Corporation | 1965 |
52 |
| Samsung Electronics Co., Ltd. | 159755 |
6 |
| Guilin Champion Union Diamond Co., Ltd. | 45 |
6 |
| Guilin Grind-academy Material Technology Co., Ltd. | 22 |
6 |
| Tokyo Seimitsu Co., Ltd. | 442 |
4 |
| Besi Netherlands B.V. | 62 |
3 |
| Shin-Etsu Handotai Co., Ltd. | 1308 |
3 |
| Suzhou Megarobo Technologies Co., Ltd. | 43 |
3 |
| Shin-Etsu Chemical Co., Ltd. | 6173 |
2 |
| D. Swarovski KG | 87 |
2 |
| Guangdong University of Technology | 674 |
2 |
| Heraeus Quarzglas GmbH & Co. KG | 416 |
2 |
| Shin-Nihon Tech Inc. | 3 |
2 |
| Takada Corporation | 8 |
2 |
| Towa Corporation | 331 |
2 |
| Element Six (UK) Limited | 238 |
2 |
| Conprofe Technology Group Co., Ltd. | 75 |
2 |
| High-purity Silicon Corporation | 73 |
2 |
| Illinois Tool Works Inc. | 11919 |
1 |
| Siemens AG | 23943 |
1 |
| Other owners | 46 |