- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 39/04 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with tubesApplication of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with rods
Patent holdings for IPC class B21D 39/04
Total number of patents in this class: 708
10-year publication summary
|
62
|
45
|
68
|
53
|
68
|
63
|
54
|
42
|
40
|
26
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Milwaukee Electric Tool Corporation | 4516 |
29 |
| Uniflex-Hydraulik GmbH | 56 |
27 |
| Novopress GmbH Pressen und Presswerkzeuge & Co. KG | 46 |
19 |
| Gustav Klauke GmbH | 146 |
16 |
| Hubbell Incorporated | 3335 |
15 |
| Flexsteel USA, LLC | 165 |
15 |
| Victaulic Company | 616 |
14 |
| Henn GmbH & Co. KG | 94 |
12 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2884 |
10 |
| Kobe Steel, Ltd. | 880 |
10 |
| Viega Technology GmbH & Co. KG | 114 |
10 |
| Adey Holdings (2008) Limited | 325 |
9 |
| Abbott Cardiovascular Systems, Inc. | 1115 |
8 |
| Hilti Aktiengesellschaft | 3525 |
8 |
| Edwards Lifesciences Corporation | 4810 |
7 |
| Ridge Tool Company | 131 |
7 |
| AFL Telecommunications LLC | 736 |
6 |
| Cembre S.p.A. | 89 |
6 |
| ContiTech USA, LLC | 276 |
6 |
| The Boeing Company | 20163 |
5 |
| Other owners | 469 |