- All sections
- B - Performing operations; transporting
- B21B - Rolling of metal
- B21B 15/00 - Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
Patent holdings for IPC class B21B 15/00
Total number of patents in this class: 261
10-year publication summary
|
30
|
22
|
15
|
18
|
21
|
16
|
23
|
19
|
18
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6067 |
26 |
| SMS Group GmbH | 1029 |
15 |
| Primetals Technologies Austria GmbH | 479 |
13 |
| Danieli & C. Officine Meccaniche S.p.A. | 680 |
11 |
| POSCO | 2222 |
11 |
| ArcelorMittal | 1887 |
9 |
| Mitsubishi-Hitachi Metals Machinery, Inc. | 61 |
8 |
| Novelis Inc. | 656 |
8 |
| Primetals Technologies Germany GmbH | 180 |
7 |
| POSCO Co., Ltd. | 1059 |
5 |
| Muhr und Bender KG | 84 |
4 |
| Shape Corp. | 166 |
4 |
| CISDI Research & Development Co., Ltd. | 27 |
4 |
| Dai Nippon Printing Co., Ltd. | 3891 |
3 |
| The Bradbury Company, Inc. | 44 |
3 |
| Nippon Steel Corporation | 5649 |
3 |
| Primetals Technologies Japan, Ltd. | 143 |
3 |
| Siemens Industry, Inc. | 1417 |
2 |
| ATI Properties LLC | 202 |
2 |
| Baoshan Iron & Steel Co., Ltd. | 832 |
2 |
| Other owners | 118 |