- 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 53/10 - Making other particular articles valve seats or the like
Patent holdings for IPC class B21D 53/10
Total number of patents in this class: 224
10-year publication summary
|
11
|
11
|
18
|
14
|
7
|
20
|
3
|
9
|
3
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NSK Ltd. | 2719 |
21 |
| NTN Corporation | 5008 |
18 |
| Schaeffler Technologies AG & Co. KG | 8880 |
15 |
| Aktiebolaget SKF | 2700 |
14 |
| JTEKT Corporation | 2423 |
8 |
| Temper Corporation | 41 |
8 |
| Temper Axle Products Corporation | 78 |
7 |
| Pacific Bearing Company | 33 |
4 |
| Schaeffler KG | 960 |
4 |
| ThyssenKrupp AG | 3086 |
4 |
| ThyssenKrupp Steel Europe AG | 924 |
4 |
| Robert Bosch GmbH | 40953 |
3 |
| IHI Corporation | 3268 |
3 |
| Saint-Gobain Performance Plastics Pampus GmbH | 120 |
3 |
| THK Co., Ltd. | 1206 |
3 |
| The Boeing Company | 19843 |
2 |
| Caterpillar Inc. | 8877 |
2 |
| Schaeffler Technologies GmbH & Co. KG | 846 |
2 |
| Amsted Rail Company, Inc. | 432 |
2 |
| Miba Gleitlager Austria GmbH | 114 |
2 |
| Other owners | 95 |