- All sections
- B - Performing operations; transporting
- B21J - Forging; hammering; pressing metal; riveting; forge furnaces
- B21J 15/20 - Drives for riveting machines; Transmission means therefor operated by hydraulic or liquid pressure
Patent holdings for IPC class B21J 15/20
Total number of patents in this class: 51
10-year publication summary
|
4
|
6
|
5
|
4
|
6
|
7
|
8
|
4
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2
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gustav Klauke GmbH | 139 |
5 |
| The Boeing Company | 19843 |
4 |
| Huck International, Inc. | 78 |
4 |
| Bollhoff Verbindungstechnik GmbH | 243 |
3 |
| Meishan CRRC Fastening System Co., Ltd. | 15 |
3 |
| TKR Spezialwerkzeuge GmbH | 30 |
3 |
| Alcoa Inc. | 323 |
2 |
| Avdel UK Limited | 158 |
2 |
| Milwaukee Electric Tool Corporation | 3572 |
2 |
| SPS Technologies, LLC | 119 |
2 |
| Voith Patent GmbH | 2727 |
2 |
| Howmet Aerospace Inc. | 367 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Airbus Operations S.A.S. | 2407 |
1 |
| Bayerische Motoren Werke Aktiengesellschaft | 13126 |
1 |
| Eckold GmbH & Co. KG | 13 |
1 |
| Flexible Steel Lacing Company | 250 |
1 |
| Gage Bilt, Inc. | 10 |
1 |
| Novopress GmbH Pressen und Presswerkzeuge & Co. KG | 31 |
1 |
| OBER S.p.A. | 9 |
1 |
| Other owners | 9 |