- All sections
- B - Performing operationstransporting
- B22D - Casting of metalscasting of other substances by the same processes or devices
- B22D 41/28 - Plates therefor
Patent holdings for IPC class B22D 41/28
Total number of patents in this class: 31
10-year publication summary
|
2
|
2
|
1
|
1
|
1
|
1
|
3
|
4
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vesuvius Group S.A. | 88 |
10 |
| Krosakiharima Corporation | 277 |
8 |
| Stopinc Aktiengesellschaft | 35 |
5 |
| Refractory Intellectual Property GmbH & Co. KG | 535 |
4 |
| TDK Corporation | 6643 |
2 |
| Tokyo Yogyo Kabushiki Kaisha | 9 |
1 |
| Hebei Vocational University of Industry and Technology | 8 |
1 |
| Other owners | 0 |