- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 41/02 - Enlarging
Patent holdings for IPC class B21D 41/02
Total number of patents in this class: 311
10-year publication summary
|
26
|
34
|
20
|
27
|
21
|
17
|
16
|
13
|
19
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Diversitech Corporation | 236 |
12 |
| Uponor Innovation AB | 279 |
11 |
| Milwaukee Electric Tool Corporation | 4954 |
10 |
| Rothenberger AG | 113 |
10 |
| Fatigue Technology, Inc. | 49 |
7 |
| JFE Steel Corporation | 7508 |
7 |
| Nippon Steel Corporation | 6843 |
7 |
| Makita Corporation | 2557 |
6 |
| Rehau AG + Co | 357 |
5 |
| Uniweld Products, Inc. | 72 |
5 |
| Victor Equipment Company | 286 |
5 |
| Zhejiang Value Mechanical & Electrical Products Co., Ltd. | 18 |
5 |
| Victaulic Company | 624 |
4 |
| Voss Fluid GmbH | 22 |
4 |
| Whitaker Chalk Swindle & Schwartz PLLC | 7 |
4 |
| Belvac Production Machinery, Inc. | 151 |
3 |
| BLM S.p.A. | 20 |
3 |
| Gustav Klauke GmbH | 148 |
3 |
| Hanon Systems | 2106 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2831 |
3 |
| Other owners | 194 |