- All sections
- B - Performing operationstransporting
- B21C - Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rollingauxiliary operations used in connection with metal-working without essentially removing material
- B21C 37/20 - Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies
Patent holdings for IPC class B21C 37/20
Total number of patents in this class: 81
10-year publication summary
|
8
|
8
|
9
|
1
|
9
|
1
|
5
|
3
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wieland-Werke AG | 351 |
8 |
| MA Aluminum Corporation | 47 |
5 |
| SaniSure, Inc. | 52 |
3 |
| General Electric Company | 13816 |
2 |
| Felss Systems GmbH | 21 |
2 |
| Mitsubishi Aluminum Co., Ltd. | 56 |
2 |
| Steering Solutions IP Holding Corporation | 970 |
2 |
| UACJ Corporation | 726 |
2 |
| Vavit S.r.l. | 2 |
2 |
| Baker Hughes, a GE Company, LLC | 2092 |
2 |
| ASC Engineered Solutions, LLC | 321 |
2 |
| Alleima GmbH | 28 |
2 |
| International Business Machines Corporation | 62295 |
1 |
| Mitsubishi Electric Corporation | 47683 |
1 |
| Uop LLC | 4322 |
1 |
| Schaeffler Technologies AG & Co. KG | 10761 |
1 |
| Ajou University Industry-academic Cooperation Foundation | 1151 |
1 |
| Allgaier Werke GmbH | 35 |
1 |
| Brembana & Rolle S.p.A. | 5 |
1 |
| Carrel Innovations Oy | 2 |
1 |
| Other owners | 39 |