- All sections
- B - Performing operationstransporting
- B21H - Making particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls
- B21H 3/08 - Making helical bodies or bodies having parts of helical shape internal screw-threads
Patent holdings for IPC class B21H 3/08
Total number of patents in this class: 42
10-year publication summary
|
4
|
2
|
5
|
4
|
2
|
0
|
1
|
3
|
1
|
1
|
| 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 | 9395 |
5 |
| Hyundai Motor Company | 20483 |
2 |
| Kia Motors Corporation | 7777 |
2 |
| Hewi G. Winker GmbH & Co. KG | 6 |
2 |
| M. H. Center Limited | 3 |
2 |
| Solvay Advanced Polymers, L.L.C. | 89 |
2 |
| Sungwoo Hitech Co., Ltd. | 87 |
2 |
| Wieland-Werke AG | 324 |
2 |
| DAe Kwang Metal.co.ltd | 2 |
2 |
| Protech Korea Co. Ltd. | 2 |
2 |
| Knust-Godwin LLC | 2 |
2 |
| Zakrytoe Aktsionernoe Obschestvo PKF "prommet-splav" | 4 |
2 |
| Honda Motor Co., Ltd. | 24866 |
1 |
| Toyota Motor Corporation | 30455 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 29733 |
1 |
| NTN Corporation | 4976 |
1 |
| Audi AG | 7281 |
1 |
| Certus Energy Solutions, LLC | 5 |
1 |
| LISI Aerospace | 132 |
1 |
| M.H. Center Limited | 1 |
1 |
| Other owners | 7 |