- All sections
- B - Performing operations; transporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; punching metal
- B21D 51/16 - Making hollow objects characterised by the use of the objects
Patent holdings for IPC class B21D 51/16
Total number of patents in this class: 210
10-year publication summary
|
11
|
12
|
11
|
13
|
12
|
8
|
5
|
9
|
7
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Continental Emitec GmbH | 38 |
5 |
| Cummins Filtration IP, Inc. | 807 |
4 |
| JFE Steel Corporation | 6557 |
4 |
| Sumitomo Heavy Industries, Ltd. | 1815 |
4 |
| Vactronix Scientific, LLC | 83 |
4 |
| Jiangsu Kangrui New Material Technology Co., Ltd. | 28 |
4 |
| Robert Bosch GmbH | 41786 |
3 |
| Cummins Filtration Inc. | 187 |
3 |
| Eberspaecher Exhaust Technology GmbH & Co. KG | 62 |
3 |
| Koninklijke Douwe Egberts B.V. | 946 |
3 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
3 |
| Nisshin Steel Co., Ltd. | 398 |
3 |
| Noritz Corporation | 262 |
3 |
| Shape Corp. | 168 |
3 |
| Tenneco Automotive Operating Company Inc. | 635 |
3 |
| Purem GmbH, Formerly, Eberspächer Exhaust Technology GmbH | 300 |
3 |
| 3m Innovative Properties Company | 17957 |
2 |
| LG Electronics Inc. | 71039 |
2 |
| The Boeing Company | 19911 |
2 |
| Denso Corporation | 23769 |
2 |
| Other owners | 147 |