- All sections
- B - Performing operations; transporting
- B21F - Working or processing of metal wire
- B21F 37/00 - Manufacture of rings from wire
Patent holdings for IPC class B21F 37/00
Total number of patents in this class: 51
10-year publication summary
|
8
|
2
|
4
|
3
|
2
|
0
|
1
|
1
|
2
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fuji Seiko Co., Ltd. | 62 |
13 |
| Fuji Shoji Co., Ltd. | 73 |
12 |
| The Yokohama Rubber Co., Ltd. | 3929 |
6 |
| Sumitomo Electric Tochigi Co., Ltd. | 34 |
5 |
| Sumitomo (SEI) Steel Wire Corp. | 48 |
3 |
| Tianjin Saixiang Technology Co., Ltd. | 19 |
3 |
| Dynamic Metals, LLC | 6 |
2 |
| Schaeffler Technologies AG & Co. KG | 8880 |
1 |
| Bartell Machinery Systems, LLC | 39 |
1 |
| Mokumeganeya Co., Ltd. | 28 |
1 |
| Compagnie Generate des Etablissements Michelin | 4 |
1 |
| Yi Chou | 1 |
1 |
| Benda Kogyo Co., Ltd. | 1 |
1 |
| Mgtec S.r.l. | 2 |
1 |
| Other owners | 0 |