- 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 41/04 - Reducing; Closing
Patent holdings for IPC class B21D 41/04
Total number of patents in this class: 191
10-year publication summary
16
|
11
|
16
|
14
|
13
|
13
|
8
|
8
|
18
|
3
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Edwards Lifesciences Corporation | 4141 |
8 |
Kayaba Industry Co., Ltd. | 376 |
8 |
NHK Spring Co., Ltd. | 1657 |
6 |
GWS Tube Forming Solutions Inc. | 11 |
5 |
Whitaker Chalk Swindle & Schwartz PLLC | 7 |
5 |
Nisshin Steel Co., Ltd. | 401 |
4 |
Boston Scientific Scimed, Inc. | 8794 |
3 |
Leifeld Metal Spinning AG | 23 |
3 |
Sango Co., Ltd. | 73 |
3 |
Stolle Machinery Company, LLC | 367 |
3 |
Uniflex-Hydraulik GmbH | 51 |
3 |
Webco Industries, Inc. | 26 |
3 |
Hydro Extruded Solutions AS | 38 |
3 |
Honda Motor Co., Ltd. | 24537 |
2 |
Abbott Laboratories | 2542 |
2 |
Bayerische Motoren Werke Aktiengesellschaft | 13126 |
2 |
Alcoa Inc. | 323 |
2 |
Alex Global Technology, Inc. | 21 |
2 |
Calsonic Kansei Corporation | 686 |
2 |
Daicel Corporation | 2128 |
2 |
Other owners | 120 |