- All sections
- B - Performing operationstransporting
- B21K - Making forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels
- B21K 1/18 - Making machine elements pistons or plungers
Patent holdings for IPC class B21K 1/18
Total number of patents in this class: 82
10-year publication summary
|
11
|
13
|
8
|
3
|
0
|
2
|
2
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MAHLE International GmbH | 2919 |
24 |
| KS Kolbenschmidt GmbH | 133 |
10 |
| Federal-Mogul Powertrain LLC | 270 |
7 |
| Showa Denko K.K. | 2061 |
4 |
| Ohio State Innovation Foundation | 2398 |
4 |
| KS Kolbenschmidt US, Inc. | 5 |
3 |
| Continental Teves AG & Co. oHG | 1453 |
2 |
| Industrial Parts Depot, LLC | 10 |
2 |
| Erdrich Umformtechnik GmbH | 12 |
2 |
| The Boeing Company | 20197 |
1 |
| Hitachi Automotive Systems, Ltd. | 3954 |
1 |
| Robert Bosch GmbH | 44291 |
1 |
| Hyundai Motor Company | 24898 |
1 |
| Schaeffler Technologies AG & Co. KG | 11159 |
1 |
| Kia Motors Corporation | 7715 |
1 |
| CDP Bharat Forge GmbH | 2 |
1 |
| Federal-Mogul Burscheid GmbH | 276 |
1 |
| Federal-Mogul Corporation | 238 |
1 |
| Federal-Mogul Nurnberg GmbH | 130 |
1 |
| Gesenkschmiede Schneider GmbH | 5 |
1 |
| Other owners | 13 |