- All sections
- B - Performing operationstransporting
- B21L - Making metal chains
- B21L 11/00 - Making chains or chain links of special shape
Patent holdings for IPC class B21L 11/00
Total number of patents in this class: 23
10-year publication summary
|
1
|
3
|
0
|
3
|
4
|
5
|
4
|
2
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 10272 |
2 |
| David Yurman IP LLC | 185 |
2 |
| iwis motorsysteme GmbH & Co. KG | 105 |
2 |
| James Avery Craftsman, Inc. | 28 |
2 |
| Marco Bicego S.p.A. | 18 |
2 |
| Ombi S.r.l. | 4 |
2 |
| Cemayla, LLC | 46 |
1 |
| Colpo & Zilio S.p.A. | 6 |
1 |
| Del PIA S.r.l. | 8 |
1 |
| M/s. SUNJEWELS International Pvt. Ltd. | 1 |
1 |
| Namiki Co., Ltd. | 1 |
1 |
| National Chain Company | 54 |
1 |
| NCVW Management Group, LLC | 2 |
1 |
| Sisma S.p.A. | 52 |
1 |
| Steris Corporation | 433 |
1 |
| Fabor S.r.l. | 1 |
1 |
| Minervahub S.p.A. | 2 |
1 |
| Other owners | 0 |