- All sections
- B - Performing operationstransporting
- B28D - Working stone or stone-like materials
- B28D 5/04 - Fine working of gems, jewels, crystals, e.g. of semiconductor materialApparatus therefor by tools other than of rotary type, e.g. reciprocating tools
Patent holdings for IPC class B28D 5/04
Total number of patents in this class: 593
10-year publication summary
|
38
|
26
|
38
|
27
|
34
|
44
|
35
|
57
|
43
|
37
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shin-Etsu Handotai Co., Ltd. | 1284 |
74 |
| Siltronic AG | 422 |
39 |
| Qingdao Gaoce Technology Co., Ltd. | 51 |
29 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10923 |
15 |
| Sumco Corporation | 1115 |
15 |
| TCL Zhonghuan Renewable Energy Technology Co., Ltd. | 141 |
15 |
| Tdg-nissin Precision Machinery Co., Ltd. | 18 |
14 |
| Globalwafers Co., Ltd. | 640 |
12 |
| Sumitomo Electric Industries, Ltd. | 15483 |
11 |
| Disco Corporation | 1858 |
11 |
| Meyer Burger AG | 34 |
9 |
| Saint-Gobain Abrasifs | 654 |
9 |
| Saint-Gobain Abrasives, Inc. | 890 |
9 |
| Komatsu NTC Ltd. | 117 |
8 |
| SK Siltron Co., Ltd. | 162 |
8 |
| Mitsubishi Electric Corporation | 46093 |
7 |
| LG Siltron Inc. | 116 |
7 |
| Toyo Advanced Technologies Co., Ltd. | 25 |
7 |
| Drychemicals Co., Ltd. | 9 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 31375 |
5 |
| Other owners | 283 |