- All sections
- B - Performing operationstransporting
- B21K - Making forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels
- B21K 1/56 - Making machine elements screw-threaded elements
Patent holdings for IPC class B21K 1/56
Total number of patents in this class: 75
10-year publication summary
|
2
|
7
|
8
|
5
|
4
|
3
|
5
|
5
|
7
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Physical Systems, Inc. | 35 |
7 |
| Hilti Aktiengesellschaft | 3701 |
5 |
| Phillips Screw Company | 88 |
5 |
| Sieber Forming Solutions GmbH | 6 |
4 |
| Kwantex Research Inc. | 34 |
3 |
| SWG Schraubenwerk Gaisbach GmbH | 53 |
3 |
| Poggipolini S.p.A. | 28 |
3 |
| SFS Group International AG | 191 |
3 |
| Nedschroef Herentals NV | 2 |
2 |
| Reed Machinery Inc. | 4 |
2 |
| Norm Izmir Civata Sanayi Ticaret Anonim Sirketi | 8 |
2 |
| Honda Motor Co., Ltd. | 26105 |
1 |
| International Business Machines Corporation | 62748 |
1 |
| Raytheon Company | 8436 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34265 |
1 |
| NTN Corporation | 4925 |
1 |
| Depuy Synthes Products, LLC | 2774 |
1 |
| Aktiebolaget SKF | 3142 |
1 |
| Asia Bolt Co., Ltd. | 4 |
1 |
| Baier & Michels GmbH & Co. KG | 50 |
1 |
| Other owners | 27 |