- 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 37/28 - Making tube fittings for connecting pipes, e.g. U-pieces
Patent holdings for IPC class B21C 37/28
Total number of patents in this class: 22
10-year publication summary
|
1
|
0
|
3
|
1
|
2
|
1
|
0
|
0
|
0
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Formtek, Inc. | 45 |
2 |
| Bremboflex S.p.A. | 3 |
2 |
| Viega Technology GmbH & Co. KG | 112 |
2 |
| The Boeing Company | 19953 |
1 |
| Certus Energy Solutions, LLC | 5 |
1 |
| Cleveland Tool & Machine, Inc. | 3 |
1 |
| Danieli & C. Officine Meccaniche S.p.A. | 705 |
1 |
| Ductmate Industries, Inc. | 19 |
1 |
| Mecanicad Inc. | 5 |
1 |
| Mestek, Inc. | 128 |
1 |
| Noritz Corporation | 264 |
1 |
| Whirlpool S.A. | 363 |
1 |
| Eaton Intelligent Power Limited | 5912 |
1 |
| Valme S.r.l. - Unico Socio | 4 |
1 |
| Kanthal AB | 107 |
1 |
| Alpes Mediterranee Technologies Electriques | 1 |
1 |
| Foshan Shunde Dunhuang Hardware & Plastic Industrial Co., Ltd. | 1 |
1 |
| Gustomsc B.V. | 29 |
1 |
| Cleveland Tool and Machine, LLC | 5 |
1 |
| Other owners | 0 |