- All sections
- B - Performing operationstransporting
- B22D - Casting of metalscasting of other substances by the same processes or devices
- B22D 41/22 - Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
Patent holdings for IPC class B22D 41/22
Total number of patents in this class: 60
10-year publication summary
|
6
|
6
|
5
|
0
|
2
|
4
|
4
|
2
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Refractory Intellectual Property GmbH & Co. KG | 569 |
14 |
| Krosakiharima Corporation | 297 |
8 |
| Stopinc Aktiengesellschaft | 32 |
7 |
| Vesuvius Group S.A. | 111 |
7 |
| SMS Siemag Aktiengesellschaft | 486 |
2 |
| Vesuvius Crucible Company | 30 |
2 |
| TDK Corporation | 6876 |
1 |
| Ajf, Inc. | 2 |
1 |
| Indref Oy | 1 |
1 |
| Kinsei Matec Co., Ltd. | 6 |
1 |
| Magnesita Refratarios S/A | 9 |
1 |
| Nippon Steel Corporation | 6895 |
1 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
1 |
| North China University of Science and Technology | 100 |
1 |
| POSTECH Academy-industry Foundation | 1063 |
1 |
| Tounetsu Co., Ltd. | 31 |
1 |
| Yanshan University | 157 |
1 |
| Yamakawa Sangyo Co., Ltd. | 5 |
1 |
| Erasteel Klister AB | 1 |
1 |
| Pdk, LLC | 3 |
1 |
| Other owners | 6 |