- 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 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: 153
10-year publication summary
|
12
|
18
|
15
|
15
|
15
|
10
|
11
|
6
|
8
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Standard Lifters, Inc. | 92 |
11 |
| Hitachi Metals, Ltd. | 2175 |
10 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
8 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
7 |
| Audi AG | 7153 |
6 |
| The Boeing Company | 19843 |
4 |
| Magna International Inc. | 1236 |
4 |
| Honda Motor Co., Ltd. | 24537 |
3 |
| Ford Global Technologies, LLC | 19702 |
3 |
| Camito AB | 4 |
3 |
| Dexerials Corporation | 1826 |
3 |
| Dowa Thermotech Co., Ltd. | 41 |
3 |
| G-Tekt Corporation | 29 |
3 |
| Insstek, Inc. | 18 |
3 |
| Ontario Die International Inc. | 38 |
3 |
| Pro Form S.r.l. | 17 |
3 |
| GM Global Technology Operations LLC | 13620 |
2 |
| Byte Line di Pelissero Alessandro | 4 |
2 |
| Fuji Manufacturing Co., Ltd. | 57 |
2 |
| Gustav Klauke GmbH | 139 |
2 |
| Other owners | 68 |