- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 37/20 - Making tools by operations not covered a single other subclass
Patent holdings for IPC class B21D 37/20
Total number of patents in this class: 154
10-year publication summary
|
18
|
15
|
15
|
15
|
10
|
11
|
7
|
9
|
4
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Standard Lifters, Inc. | 96 |
11 |
| Hitachi Metals, Ltd. | 1982 |
10 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2874 |
8 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12798 |
8 |
| Audi AG | 7362 |
6 |
| The Boeing Company | 20043 |
4 |
| G-Tekt Corporation | 42 |
4 |
| Magna International Inc. | 1226 |
4 |
| Honda Motor Co., Ltd. | 25251 |
3 |
| Ford Global Technologies, LLC | 20570 |
3 |
| Camito AB | 4 |
3 |
| Dexerials Corporation | 1966 |
3 |
| Dowa Thermotech Co., Ltd. | 44 |
3 |
| Insstek, Inc. | 16 |
3 |
| Pro Form S.r.l. | 21 |
3 |
| GM Global Technology Operations LLC | 15042 |
2 |
| Byte Line di Pelissero Alessandro | 4 |
2 |
| Fuji Manufacturing Co., Ltd. | 55 |
2 |
| Gustav Klauke GmbH | 144 |
2 |
| Nippon Steel Corporation | 6238 |
2 |
| Other owners | 68 |