- All sections
- B - Performing operationstransporting
- B22D - Casting of metalscasting of other substances by the same processes or devices
- B22D 41/18 - Stopper-rods therefor
Patent holdings for IPC class B22D 41/18
Total number of patents in this class: 63
10-year publication summary
|
7
|
5
|
3
|
2
|
5
|
3
|
7
|
2
|
5
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Refractory Intellectual Property GmbH & Co. KG | 555 |
18 |
| Krosakiharima Corporation | 290 |
7 |
| Vesuvius Group S.A. | 102 |
6 |
| ArcelorMittal | 2402 |
3 |
| Inductotherm Corp. | 157 |
3 |
| Pyrotek High Temperature Industrial Products, Inc. | 11 |
3 |
| Novelis Inc. | 769 |
2 |
| Vesuvius USA Corporation | 93 |
2 |
| Sheffield Hi-Tech Refractories Germany GmbH | 4 |
2 |
| Shenyang Taihe Metallurgical Measurement And Control Technologies Co.,Ltd. | 4 |
2 |
| Hitachi Metals, Ltd. | 1957 |
1 |
| ABB AB | 156 |
1 |
| ABB Schweiz AG | 7201 |
1 |
| Amsted Rail Company, Inc. | 432 |
1 |
| Fill Gesellschaft m.b.H. | 138 |
1 |
| Primetals Technologies Austria GmbH | 552 |
1 |
| Pyrotek, Inc. | 202 |
1 |
| REFRACTORY INTELLECTUAL PROPERTY GmbH & Co. | 8 |
1 |
| Swerea Mefos AB | 2 |
1 |
| Tata Steel Limited | 170 |
1 |
| Other owners | 5 |