- All sections
- B - Performing operations; transporting
- B21K - Making forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels
- B21K 1/20 - Making machine elements valve parts
Patent holdings for IPC class B21K 1/20
Total number of patents in this class: 39
10-year publication summary
|
2
|
2
|
0
|
1
|
3
|
6
|
1
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schaeffler Technologies AG & Co. KG | 9364 |
9 |
| Eaton Intelligent Power Limited | 6293 |
3 |
| Caterpillar Inc. | 9149 |
2 |
| Nakanishi Metal Works Co., Ltd. | 110 |
2 |
| Nittan Valve Co., Ltd. | 134 |
2 |
| Otics Corporation | 52 |
2 |
| Illinois Tool Works Inc. | 11369 |
1 |
| Honda Motor Co., Ltd. | 24865 |
1 |
| Eaton Corporation | 1832 |
1 |
| Schaeffler Technologies GmbH & Co. KG | 846 |
1 |
| B. Braun Medical Inc. | 199 |
1 |
| Bharat Forge Ltd. | 35 |
1 |
| Clayton Corporation | 52 |
1 |
| Federal-Mogul Valvetrain GmbH | 63 |
1 |
| Fuji Oozx Inc. | 23 |
1 |
| Indimet Inc. | 13 |
1 |
| Insulet Corporation | 783 |
1 |
| KITZ Corporation | 203 |
1 |
| KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH | 599 |
1 |
| Laser Mechanisms, Inc. | 27 |
1 |
| Other owners | 5 |