- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 41/41 - Inorganic materials by melting
Patent holdings for IPC class H01L 41/41
Total number of patents in this class: 20
10-year publication summary
|
4
|
2
|
4
|
0
|
0
|
1
|
0
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Metal Mining Co., Ltd. | 1936 |
4 |
| National Institute for Materials Science | 1091 |
2 |
| Partron Co., Ltd. | 145 |
2 |
| Toshiba Medical Systems Corporation | 2086 |
1 |
| Ceracomp Co., Ltd. | 23 |
1 |
| citizen Finetech Miyota Co., Ltd. | 22 |
1 |
| citizen Watch Co., Ltd. | 1081 |
1 |
| Energy Storage Materials LLC | 11 |
1 |
| JFE Mineral Company, Ltd. | 62 |
1 |
| The Penn State Research Foundation | 1589 |
1 |
| Sakai Chemical Industry Co., Ltd. | 275 |
1 |
| Tohoku University | 2904 |
1 |
| TRS Technologies, Inc. | 14 |
1 |
| Universite de Lorraine | 394 |
1 |
| Piezo Studio Inc. | 12 |
1 |
| Other owners | 0 |